EXECUTION COPY

      SHARE EXCHANGE AND REORGANIZATION  AGREEMENT,  dated as of August 25, 2004
(the "Agreement"),  between GREAT EXPECTATIONS AND ASSOCIATES,  INC., a Colorado
corporation ("GXPT"); and ADVAXIS, INC., a Delaware corporation ("Advaxis"), and
the SHAREHOLDERS OF ADVAXIS set forth on Schedule A hereto,  which  shareholders
constitute  all of the holders of capital stock of Advaxis as of the date hereof
and as of the Closing (as defined below) (the "Advaxis Shareholders").

                                  INTRODUCTION

      GXPT  desires to acquire (i) all of the issued and  outstanding  shares of
Common Stock of Advaxis (the  "Advaxis  Common  Stock"),  and Series A Preferred
Stock of Advaxis (the  "Advaxis  Series A Preferred  Stock;'  together  with the
Advaxis Common Stock,  the "Advaxis Capital Stock") in exchange for an aggregate
of 15,597,723  shares (the  "Purchase  Shares") of authorized,  but  theretofore
unissued,  shares of common  stock,  no par  value,  of GXPT (the  "GXPT  Common
Stock"),  (ii) all of the issued and  outstanding  warrants to purchase  Advaxis
Capital  Stock (the  "Advaxis  Warrants"),  in exchange for Warrants to purchase
584,885 shares of GXPT Common Stock (the "GXPT Warrants"),  and (iii) all of the
issued and outstanding  options to purchase  Advaxis Capital Stock (the "Advaxis
Options") in exchange for an  aggregate  of 2,381,525  options to purchase  GXPT
Common  Stock (the "GXPT  Options");  representing  96.25% of the fully  diluted
outstanding  GXPT Common Stock after  giving  effect to such  issuances  and the
issuance of shares of GXPT Common Stock  referred to in Section  3.01(p)  below,
all as more  fully set forth on  Schedule  B hereto.  The  Advaxis  Shareholders
desire to exchange  their  beneficially  owned shares of Advaxis  Capital  Stock
solely for shares of GXPT Common Stock at a ratio of  352.1823361  as more fully
set forth on Schedule B hereto.

      Prior to the date hereof,  the  respective  boards of directors of each of
GXPT and Advaxis have, and the Advaxis Shareholders and the shareholders of GXPT
have,  approved and adopted this  Agreement  and it is the intent of the parties
hereto that the transactions  contemplated hereby be structured so as to qualify
as a tax-free  exchange under Subchapter C of the Internal Revenue Code of 1986,
as  amended  (the  "Code"),  and  the  provisions  of  this  Agreement  will  be
interpreted in a manner consistent with this intent.

      There  shall be an offering  to sell up to 280 units (the  "Units"),  each
Unit  consisting  of 87,108 shares of GXPT Common Stock and Warrants to purchase
87,108  shares of GXPT Common  Stock for an  aggregate  purchase  price of up to
$7,000,000 (the  "Offering").  In connection with the Offering all of the issued
and outstanding promissory notes of Advaxis which are convertible into shares of
Advaxis capital stock (the "Advaxis  Notes") shall be exchanged for Units on the
same terms as in the  Offering.  As of the date hereof the  aggregate  principal
amount of the Advaxis Notes is $494,729.


      After giving effect to (a) the acquisition of the Advaxis Capital Stock in
exchange  for the  Purchase  Shares,  (b) the  issuance of shares of GXPT Common
Stock referred to in Section 3.01(p) below, and (c) the exchanges of the Advaxis
Warrants and Advaxis  Options for GXPT Warrants and GXPT Options (but not giving
effect to the issuance  and/or  conversion  of the Advaxis  Notes,  the Units or
shares of GXPT Common  Stock or  Warrants  issuable  to  placement  agents or to
consultants  in  connection  with  the  Offering)  there  shall  be  outstanding
20,069,333  shares of common stock of GXPT, on a fully diluted basis. Such fully
diluted capitalization table is set forth on Schedule B hereto.

      Upon the  signing of this  Agreement  by all  parties  to this  Agreement,
Advaxis shall advance to GXPT a nonrefundable payment of $7,500 by wire transfer
or by  certified  check.  The closing of the  transaction  contemplated  by this
Agreement (the "Closing")  shall occur when $1,500,000 has been placed in escrow
in connection with the Offering;  it being  understood  however that the date of
the Closing must occur on or prior to forty-five  (45) days from the date hereof
(the  "Initial  Closing  Date").  If Advaxis  advances  to GXPT a  nonrefundable
payment of $15,000 on or prior to the Initial Closing Date, then the date of the
Closing shall be extended for an  additional  forty-five  (45) day period.  Such
advances shall be offset against the amount Advaxis shall pay to GXPT at Closing
as set forth in Section 1.03(e).

      NOW,   THEREFORE,   in   consideration   of  the   premises   and   mutual
representations,  warranties and covenants herein contained,  the parties hereby
agree as follows:

                                    ARTICLE I

                       ACQUISITION AND EXCHANGE OF SHARES

      SECTION  1.01 THE  AGREEMENT.  The parties  hereto  hereby agree that GXPT
shall acquire all of the issued and outstanding shares of Advaxis Capital Stock,
Advaxis Warrants and Advaxis Options in exchange for the Purchase  Shares,  GXPT
Warrants and GXPT Options.  The parties hereto agree that at the Closing Advaxis
will become a  wholly-owned  subsidiary  of GXPT subject to the  conditions  and
provisions of Section 1.03 hereof.

      SECTION 1.02 EXCHANGE OF SECURITIES.

      (a) At the Closing,  GXPT will cause to be issued and held for delivery to
the Advaxis Shareholders or their designees,  as applicable,  stock certificates
representing  the  Purchase  Shares  in  exchange  for  all  of the  issued  and
outstanding  shares of Advaxis  Capital Stock.  At the Closing,  Advaxis and the
Advaxis  Shareholders will cause to be delivered to GXPT, stock  certificates or
other evidence, as applicable, representing Advaxis Capital Stock. The shares of
GXPT Common  Stock to be issued will be  authorized,  but  theretofore  unissued
shares  of GXPT  Common  Stock,  and will be issued  to the  respective  Advaxis
Shareholders as set forth in Schedule B hereof.

      (b) At the Closing,  GXPT will cause to be issued and held for delivery to
the Advaxis  Shareholders  warrant agreements  representing the GXPT Warrants in
exchange for all of the Advaxis Warrants, which will be delivered to GXPT at the
Closing. At the Closing,  Advaxis and the Advaxis  Shareholders will cause to be
delivered  to  GXPT,  warrant  agreements  or  other  evidence,  as  applicable,
representing  the  Advaxis  Warrants.  The GXPT  Warrants  to be issued  will be
authorized,  but theretofore  unissued GXPT Warrants,  and will be issued to the
Advaxis Shareholders, as applicable, as set forth in Schedule B hereof.


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      (c) At the Closing,  GXPT will cause to be issued and held for delivery to
the Advaxis Shareholders option agreements representing GXPT Options in exchange
for all of the Advaxis Options,  which Advaxis Options will be delivered to GXPT
at the Closing. At the Closing,  Advaxis and the Advaxis Shareholders will cause
to be delivered to GXPT the option agreements or other evidence,  as applicable,
representing the GXPT Options. The GXPT Options to be issued will be authorized,
but  theretofore  ungranted,  and  will be  granted  to the  respective  Advaxis
Shareholders as set forth in Schedule B hereof.

      (d) All shares of GXPT Common Stock to be issued hereunder shall be deemed
"restricted  securities"  as  defined  in  paragraph  (a) of Rule 144  under the
Securities Act of 1933, as amended (the  "Securities  Act").  All shares of GXPT
Common  Stock to be issued  under the  terms of this  Agreement  shall be issued
pursuant to an exemption from the  registration  requirements  of the Securities
Act,  under  Section 4(2) of the  Securities  Act and the rules and  regulations
promulgated  thereunder.  Certificates  representing  the shares of GXPT  Common
Stock to be issued  hereunder shall bear a restrictive  legend in  substantially
the following form:

            THE SHARES  REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
            UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE OFFERED
            FOR SALE, SOLD, OR OTHERWISE  DISPOSED OF, EXCEPT IN COMPLIANCE WITH
            THE REGISTRATION  PROVISIONS OF SUCH ACT OR PURSUANT TO AN EXEMPTION
            FROM SUCH REGISTRATION  PROVISIONS,  THE AVAILABILITY OF WHICH IS TO
            BE ESTABLISHED TO THE SATISFACTION OF THE COMPANY.

      SECTION  1.03  CLOSING.  The  Closing  will take  place at the  offices of
Reitler Brown & Rosenblatt LLC ("Reitler Brown") on the date that $1,500,000 has
been placed in escrow  pursuant to the Offering,  or such other date and at such
other time and place to be mutually agreed upon by the parties hereto;  provided
that such date will occur by the Initial Closing Date unless extended by Advaxis
in the  manner  set  forth  in the  Introduction,  and  will be  subject  to the
provisions of Article IV of this Agreement. The date the Closing actually occurs
shall be deemed the "Closing Date". At the Closing:

      (a) Advaxis will deliver to GXPT stock certificates, warrant certificates,
warrant  agreements,  option  agreements,  or other evidences  representing  the
Advaxis Capital Stock,  Advaxis Warrants and Advaxis  Options,  duly endorsed or
accompanied by a properly  executed  stock power,  so as to make GXPT the holder
thereof,  free and clear of all  liens,  claims  and other  encumbrances,  or an
affidavit of lost  certificate  or other evidence  satisfactory  to Advaxis that
such securities and/or agreements were lost or destroyed;


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      (b) GXPT will  deliver to the Advaxis  Shareholders,  in  accordance  with
Section 1.02 hereof, stock certificates representing the Purchase Shares, option
agreements  representing the GXPT Options and warrant certificates  representing
the GXPT Warrants;

      (c) GXPT will  deliver an Officer's  Certificate  as described in Sections
4.02(a)  and  4.02(b)  hereof,  dated  the  Closing  Date,  certifying  that all
representations,  warranties, covenants, and conditions set forth herein by GXPT
are true and correct as of, or have been fully  performed  and complied with by,
the Closing Date;

      (d) Advaxis will deliver an Officer's Certificate as described in Sections
4.01(a)  and  4.01(b)  hereof,  dated  the  Closing  Date,  certifying  that all
representations,  warranties,  covenants  and  conditions  set  forth  herein by
Advaxis are true and correct as of, or have been fully  performed  and  complied
with by, the Closing Date;

      (e) Advaxis  shall pay up to an aggregate  of $90,000  less the  aggregate
amount of payments  Advaxis shall have made to GXPT prior to the Closing (as set
forth in the Introduction)  (the "Advaxis  Payment") to GXPT by wire transfer or
certified  check. It being  understood  among the parties hereto that GXPT shall
pay the  aggregate  amount of the notes payable to the  stockholders  of GXPT as
stated in GXPT's most  recent  Form 10Q filing  with the SEC and all  reasonable
legal  costs and  expenses  and auditor  costs and  expenses of GXPT out of such
Advaxis  Payment;  provided  that GXPT shall have  provided  to Advaxis  written
documentation of such costs and expenses prior to Closing; and.

      (f) GXPT  will  prepare  and  file  with the  applicable  governmental  or
regulatory  authorities any additional  necessary documents that may be required
by applicable law or regulations of the State of Colorado, the Unities States of
America, or otherwise to effect the transactions contemplated hereby.

                                   ARTICLE II

                         REPRESENTATIONS AND WARRANTIES

      SECTION  2.01   REPRESENTATIONS   AND  WARRANTIES  OF  GXPT.  GXPT  hereby
represents   and  warrants  to,  and  agrees  with,   Advaxis  and  the  Advaxis
Shareholders as follows:

      (a) Organization and  Qualification.  Other than as set forth in Section A
of the disclosure  letter,  of even date herewith,  from GXPT to Advaxis and the
Advaxis  Shareholders  (the "GXPT  Disclosure  Letter"),  GXPT does not have any
subsidiaries  or  affiliated  corporations  and does not own any interest in any
other  enterprise  (whether or not such enterprise is a corporation).  GXPT is a
corporation  duly organized,  validly  existing,  and in good standing under the
laws of the State of Colorado,  with all requisite power and authority,  and all
necessary consents,  authorizations,  approvals, orders, licenses, certificates,
and permits of and from, and declarations and filings with, all federal,  state,
local, and other governmental authorities and all courts and other tribunals, to
own,  lease,  license,  and use its  properties  and  assets and to carry on the
businesses  in  which  it  is  now  engaged  and  the  businesses  in  which  it
contemplates  engaging.  Other  than  as set  forth  in  Section  A of the  GXPT
Disclosure Letter, GXPT is duly qualified to transact the businesses in which it
is  engaged  and  is  in  good  standing  as  a  foreign  corporation  in  every
jurisdiction in which its ownership,  leasing,  licensing, or use of property or
assets or the conduct of its businesses makes such qualification necessary.


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      (b)  Capitalization.  Immediately  prior to the  Closing,  the  authorized
capital stock of GXPT consists of  500,000,000  shares of GXPT Common Stock,  of
which 150,520,000  shares are outstanding.  Prior to Closing,  a majority of the
GXPT  shareholders  shall  approve  and caused to become  effective  the charter
amendments  contemplated by Section 3.01 hereof. Each of such outstanding shares
of GXPT Common Stock is validly  authorized,  validly  issued,  fully paid,  and
nonassessable,  has not been issued and is not owned or held in violation of any
preemptive or similar right of  stockholders.  There is no commitment,  plan, or
arrangement to issue, and no outstanding option, warrant, or other right calling
for the issuance of, any share of capital stock of GXPT or any security or other
instrument  convertible into, exercisable for, or exchangeable for capital stock
of GXPT other than the  Offering.  There is  outstanding  no  security  or other
instrument  convertible  into, or exchangeable or exercisable for, capital stock
of GXPT.

      (c) Financial  Condition.  GXPT has filed with the Securities and Exchange
Commission  (the "SEC") and has provided to Advaxis  true and correct  copies of
the following:  audited  balance sheets of GXPT as of October 31, 2002 and 2003;
unaudited  balance  sheets  of GXPT as of  April  30,  2003  and  2004;  audited
statements of income, statements of stockholders' equity, and statements of cash
flows of GXPT for the years ended  October 31, 2002 and 2003;  and the unaudited
statements of income, statements of stockholders' equity, and statements of cash
flows of GXPT for the six  months  ended  April  30,  2003 and  2004.  Each such
balance sheet shall present fairly the financial condition, assets, liabilities,
and stockholders'  equity of GXPT as of its respective date; each such statement
of income and statement of stockholders' equity shall present fairly the results
of operations of GXPT for the period indicated;  and each such statement of cash
flows shall present fairly the  information  purported to be shown therein.  The
financial statements referred to in this Section 2.01(c) will have been prepared
in accordance with generally accepted accounting principles in the United States
("GAAP")  consistently  applied  throughout the periods involved and shall be in
accordance with the books and records of GXPT. The financial statements referred
to in this Section 2.01(c) contain all certifications and statements required by
the SEC's  Order,  dated June 27,  2002,  pursuant  to Section  21(a)(1)  of the
Exchange Act (File No. 4-460),  Rule 13a-14 or 15d-14 under the Exchange Act, or
18 U.S.C.  Section 1350 (Sections 302 and 906 of the Sarbanes-Oxley Act of 2002)
with respect to the report relating thereto.  The financial  statements referred
to in this  Section  2.01(c)  comply as to form in all  material  respects  with
applicable accounting  requirements and with the published rules and regulations
of the SEC with respect  thereto,  have been prepared in  accordance  with GAAP,
applied on a  consistent  basis  during the periods  involved  (except as may be
indicated  in  the  notes  thereto  or,  in  the  case  of  unaudited  financial
statements,  as  permitted by the rules and  regulations  of the SEC) and fairly
present, subject in the case of the unaudited financial statements, to customary
year end  audit  adjustments,  the  financial  position  of GXPT as at the dates
thereof and the results of its operations and cash flows. Since April 30, 2004:

                  (i) There has at no time been a material adverse change in the
            financial condition, results of operations,  businesses, properties,
            assets, liabilities, or future prospects of GXPT.


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                  (ii) GXPT has not authorized,  declared, paid, or effected any
            dividend  or  liquidating  or other  distribution  in respect of its
            capital  stock or any direct or indirect  redemption,  purchase,  or
            other acquisition of any stock of GXPT.

                  (iii)  The   operations  and  businesses  of  GXPT  have  been
            conducted in all respects  only in the  ordinary  course,  except as
            described in filings made and to be made by GXPT to the SEC..

There is no fact  known to GXPT  which  materially  adversely  affects or in the
future (as far as GXPT can reasonably  foresee) may materially  adversely affect
the financial condition, results of operations,  businesses, properties, assets,
liabilities, or future prospects of GXPT; provided, however, that GXPT expresses
no opinion as to political or economic  matters of general  applicability.  GXPT
has made known,  or caused to be made known,  to the accountants or auditors who
have prepared,  reviewed, or audited the aforementioned  consolidated  financial
statements  all  material  facts  and  circumstances   which  could  affect  the
preparation, presentation, accuracy, or completeness thereof.

      (d) Tax and Other  Liabilities.  GXPT does not have any material liability
of any nature, accrued or contingent, including, without limitation, liabilities
for  federal,  state,  local,  or foreign  taxes and  penalties,  interest,  and
additions to tax ("Taxes"),  and  liabilities  to customers or suppliers,  other
than the following:

                  (i)  Liabilities for which full provision has been made on the
            balance sheet and the notes thereto (the "Last GXPT Balance  Sheet")
            as of April 30, 2004,  (the "Last GXPT Balance Sheet Date") referred
            to in Section 2.01(c); and

                  (ii) Other  liabilities  arising  since the Last GXPT  Balance
            Sheet Date and prior to Closing in the  ordinary  course of business
            (which  shall not include  liabilities  to  customers  on account of
            defective  products or services) which are not inconsistent with the
            representations  and  warranties  of GXPT or any other  provision of
            this Agreement.

Without  limiting  the  generality  of  the  foregoing,  the  amounts  set up as
provisions  for Taxes on the Last GXPT  Balance  Sheet  are  sufficient  for all
accrued and unpaid Taxes of GXPT,  whether or not due and payable and whether or
not  disputed,  under tax laws, as in effect on the Last GXPT Balance Sheet Date
or now in effect,  for the period ended on such date and for all fiscal  periods
prior thereto.  The execution,  delivery,  and  performance of this Agreement by
GXPT will not cause any Taxes to be payable  (other than those that may possibly
be payable by the Advaxis  Shareholders as a result of the contribution of their
shares  of  Advaxis  Capital  Stock  to  GXPT) or cause  any  lien,  charge,  or
encumbrance  to secure any Taxes to be created  either  immediately  or upon the
nonpayment  of any Taxes other than on the  properties  or assets of the Advaxis
Shareholders.  GXPT has filed all federal, state, local, and foreign tax returns
required to be filed by it; has delivered to the Advaxis Shareholders a true and
correct copy of each such return which was filed since  incorporation;  has paid
(or has  established  on the Last GXPT  Balance  Sheet a reserve for) all Taxes,
assessments,  and other  governmental  charges  payable or  remittable  by it or
levied upon it or its properties,  assets,  income,  or franchises which are due
and payable;  and has delivered to the Advaxis  Shareholders  a true and correct
copy of any report as to  adjustments  received by it from any taxing  authority
since incorporation and a statement as to any litigation,  governmental or other
proceeding (formal or informal),  or investigation  pending,  threatened,  or in
prospect with respect to any such report or the subject matter of such report.


                                       6


      (e)  Litigation  and Claims.  Except as described in Section E of the GXPT
Disclosure Letter, there is no litigation,  arbitration,  claim, governmental or
other proceeding (formal or informal),  or investigation pending or, to the best
of GXPT's knowledge,  threatened, or in prospect (or any basis therefor known to
GXPT) with respect to GXPT or any of its businesses, properties, or assets. GXPT
is not a "union shop" and is not a party to any collective  bargaining agreement
or similar labor arrangement.  GXPT is not affected by any present or threatened
strike or other labor  disturbance  nor to the  knowledge of GXPT,  is any union
attempting  to represent any employee of GXPT as  collective  bargaining  agent.
GXPT is not in  violation  of, or in default  with  respect  to, any law,  rule,
regulation,  order,  judgment, or decree which violation or default would have a
material  adverse  effect on GXPT;  nor is GXPT  required  to take any action in
order to avoid such violation or default.

      (f) Properties.

            (i) GXPT owns no real property.  GXPT has good title to all personal
properties  and  assets  used in its  businesses  or owned  by it and has  valid
leasehold  interests  and  licenses  in and with  respect  to all real and other
properties  and assets as are held  pursuant to leases or licenses  described in
Section B or C of the GXPT Disclosure Letter and used in its business,  free and
clear  of all  liens,  mortgages,  security  interests,  pledges,  charges,  and
encumbrances  (except  such as are  listed in  Section F of the GXPT  Disclosure
Letter).

            (ii) Set forth in Section F of the GXPT Disclosure  Letter is a true
and complete list of all tangible  properties and assets owned by GXPT or leased
or  licensed  by GXPT  from or to a third  party  (including  inventory  but not
including  Intangibles  (as  hereinafter  defined)),  and with  respect  to such
properties  and assets  leased or licensed by GXPT from or to a third  party,  a
description  of such lease or license,  including  the term interest and amounts
paid GXPT under such lease or license. All such properties and assets (including
Intangibles)  owned by GXPT are reflected on the Last GXPT Balance Sheet (except
for acquisitions subsequent to the Last GXPT Balance Sheet Date and prior to the
Closing Date, which are set forth in Section F of the GXPT Disclosure  Letter or
are approved in writing by Advaxis). All tangible properties and assets owned by
GXPT or leased  or  licensed  by GXPT  from or to a third  party are in good and
usable  condition  (reasonable  wear  and tear  which  is not such as to  affect
adversely the operation of the businesses of GXPT excepted). All such leases and
licenses to which GXPT is a party are in full force and effect.

            (iii) To the best of GXPT's  knowledge,  no real property  leased or
licensed  by GXPT from or to a third party lies in an area which is, or will be,
subject to zoning, use, or building code restrictions which would prohibit, and,
to the best of GXPT's  knowledge,  no state of facts  relating to the actions or
inaction  of  another  person  or entity or his or its  ownership,  leasing,  or
licensing  of any real or  personal  property  exists or will exist  which would
prevent, the continued effective  ownership,  leasing, or licensing of such real
property in the  businesses  in which GXPT is now engaged or the  businesses  in
which it contemplates engaging.


                                       7


            (iv)  The  properties   and  assets   (including   Intangibles   (as
hereinafter defined)) owned by GXPT (other than those leased or licensed by GXPT
to a third  party) or leased or licensed  by GXPT from a third party  constitute
all such  properties and assets which are necessary to the businesses of GXPT as
presently conducted.

            (v) GXPT has not caused or permitted its businesses  properties,  or
assets to be used to generate,  manufacture,  refine,  transport,  treat, store,
handle,  dispose of, transfer,  produce,  or process any Hazardous Substance (as
such term is defined in this Section  2.01(f)(v))  except in compliance with all
applicable laws, rules, regulations, orders, judgments, and decrees, and has not
caused or  permitted  the  Release  (as such  term is  defined  in this  Section
2.01(f)(v))  of any  Hazardous  Substance  on or off the site of any property of
GXPT. The term "Hazardous  Substance" shall mean any hazardous waste, as defined
by 42 U.S.C.  ss.6903(5),  any  hazardous  substance,  as  defined  by 42 U.S.C.
ss.9601(14),  any pollutant or contaminant, as defined by 42 U.S.C. ss.9601(33),
and all toxic  substances,  hazardous  materials,  or other chemical  substances
regulated by any other law, rule, or regulation.  The term "Release"  shall have
the meaning set forth in 42 U.S.C. ss.9601(22).

      (g)  Contracts  and Other  Instruments.  Section G of the GXPT  Disclosure
Letter contains a true and correct  statement of the information  required to be
contained therein regarding material contracts, agreements, instruments, leases,
licenses,  arrangements,  or  understandings  with  respect  to  GXPT.  GXPT has
furnished to the Advaxis  Shareholders (i) the certificate of incorporation  (or
other  charter  document)  and by-laws of GXPT and all  amendments  thereto,  as
presently in effect, and (ii) the following:  (A) true and correct copies of all
material contracts,  agreements, and instruments referred to in Section G of the
GXPT Disclosure  Letter;  (B) true and correct copies of all material leases and
licenses referred to in Section G of the GXPT Disclosure Letter hereto;  and (C)
true and correct  written  descriptions  of all material  supply,  distribution,
agency,  financing,  or other  arrangements  or  understandings  referred  to in
Section  G of the  GXPT  Disclosure  Letter.  To the best of  GXPT's  knowledge,
neither GXPT nor (to the knowledge of GXPT) any other party to any such material
contract,  agreement,  instrument,  lease,  or  license is now or expects in the
future to be in  violation or breach of, or in default with respect to complying
with, any term thereof, and each such material contract, agreement,  instrument,
lease,  or license is in full force and is (to the best of GXPT's  knowledge  in
the case of third  parties)  the legal,  valid,  and binding  obligation  of the
parties  thereto and (subject to applicable  bankruptcy,  insolvency,  and other
laws affecting the enforceability of creditors' rights generally) is enforceable
as to them in accordance with its respective  terms.  Each such material supply,
distribution,  agency,  financing,  or other  arrangement or  understanding is a
valid and continuing  arrangement or  understanding;  neither GXPT nor any other
party to any such arrangement or  understanding  has given notice of termination
or taken any action  inconsistent  with the  continuance of such  arrangement or
understanding;  and the execution,  delivery,  and performance of this Agreement
will not prejudice any such arrangement or understanding in any way. GXPT enjoys
peaceful and undisturbed possession under all material leases and licenses under
which it is  operating.  GXPT is not  party  to,  or  bound  by,  any  contract,
agreement, instrument, lease, license, arrangement, or understanding, or subject
to any charter or other restriction, which has had or (to the knowledge of GXPT)


                                       8


may in the future have a material  adverse  effect on the  financial  condition,
results of operations,  businesses,  properties,  assets, liabilities, or future
prospects  of GXPT.  GXPT has not engaged  within the last five years in, is not
engaging in, and does not intend to engage in any transaction  with, and has not
had within the last five years,  does not now have,  and does not intend to have
any material contract,  agreement,  instrument,  lease, license, arrangement, or
understanding with, any stockholder of GXPT, any director,  officer, or employee
of GXPT  (except  for  employment  agreements  listed  in  Section G of the GXPT
Disclosure  Letter and employment  and  compensation  arrangements  described in
Section H of the GXPT  Disclosure  Letter),  any  relative or  affiliate  of any
stockholder of GXPT or of any such director,  officer, or employee, or any other
corporation  or enterprise in which any  stockholder of GXPT, any such director,
officer, or employee, or any such relative or affiliate then had or now has a 5%
or  greater  equity or voting or other  substantial  interest,  other than those
listed and so specified in Section G of the GXPT  Disclosure  Letter.  The stock
ledgers and stock  transfer  books  relating to all  issuances  and transfers of
stock by GXPT and the minute  book  records of GXPT and all  proceedings  of the
stockholders  and the Board of Directors  and  committees  thereof of GXPT since
their  respective  incorporations  made  available to counsel to Advaxis and the
Advaxis Shareholders are the original stock ledgers and stock transfer books and
minute book records of GXPT or exact copies thereof. GXPT is not in violation or
breach  of, or in  default  with  respect  to,  any term of its  certificate  of
incorporation (or other charter document) or by-laws.

      (h) Employees.

            (i)  GXPT  does  not  have,   or   contribute   to,   any   pension,
profit-sharing,  option,  other  incentive  plan,  or any other type of Employee
Benefit  Plan (as  defined in Section  3(3) of the  Employee  Retirement  Income
Security Act of 1974, as amended  ("ERISA")),  nor does GXPT have any obligation
to or customary arrangement with employees for bonuses,  incentive compensation,
vacations,  severance  pay,  sick pay,  sick leave,  insurance,  service  award,
relocation,  disability,  tuition  refund,  or other  benefits,  whether oral or
written,  except as set forth in Section H of the GXPT Disclosure  Letter.  GXPT
has  furnished  to Advaxis  and the Advaxis  Shareholders:  (A) true and correct
copies of all documents evidencing plans, obligations,  or arrangements referred
to in  Section H of the GXPT  Disclosure  Letter  (or true and  correct  written
summaries,  so initialed,  of such plans,  obligations,  or  arrangements to the
extent not evidenced by documents) and true and correct copies, so initialed, of
all  documents  evidencing  trusts,  summary  plan  descriptions,  and any other
summaries or  descriptions  relating to any such plans;  (B) the two most recent
annual reports (Form 5500's),  if any,  including all schedules  thereto and the
most recent  annual and periodic  accounting of related plan assets with respect
to each Employee Benefit Plan; (C) the two most recent actuarial valuations with
respect to each Pension  Plan (as defined in Section  3(2) of ERISA)  subject to
Title IV of ERISA;  and (D) the most recent  determination  letter issued by the
Internal Revenue Service with respect to each Pension Plan.

            (ii) If any Employee  Benefit Plan of GXPT were to be  terminated on
the day prior to Closing Date, (A) no liability under Title IV of ERISA would be
incurred  by GXPT or Advaxis and (B) all  Accrued  Benefits  (as defined in this
Section  2.01(h)(ii))  to such day prior to the  Closing  Date  (whether  or not
vested) would be fully funded in accordance  with the  assumptions  contained in
the  regulations  of the Pension  Benefit  Guaranty  Corporation  governing  the
funding of terminated  defined  benefit  plans.  For purposes  hereof,  "Accrued
Benefits" shall include the value of disability, pre-retirement, death benefits,


                                       9


and all supplements,  subsidized, ancillary, and optional forms of benefits. All
Accrued Liabilities (for contributions or otherwise) (as defined in this Section
2.01(h)(ii))  of GXPT as of the Closing Date to each  Employee  Benefit Plan and
with respect to each obligation to, or customary arrangement with, employees for
bonuses, incentive compensation, vacations, severance pay, sick pay, sick leave,
insurance,  service award,  relocation,  disability,  tuition  refund,  or other
benefits,  whether  oral or  written,  have been paid or accrued for all periods
ending prior to the Closing Date and no payment to any Employee  Benefit Plan or
with respect to any such  obligation or arrangement  since the Last GXPT Balance
Sheet Date has been  disproportionately  large compared to prior  payments.  For
purposes hereof,  "Accrued Liabilities" shall include a pro rata contribution to
each  Employee  Benefit  Plan  or  with  respect  to  each  such  obligation  or
arrangement  for that  portion of a plan year or other  applicable  period which
commences  prior to, and ends after,  the Closing Date, and Accrued  Liabilities
for any portion of a plan year or other applicable period shall be determined by
multiplying the liability for the entire such year or period by a fraction,  the
numerator of which is the number of days preceding the Closing Date in such year
or period  and the  denominator  of which is the  number of days in such year or
period, as the case may be.

            (iii) There has been no violation of the  reporting  and  disclosure
requirements imposed either under ERISA or the Code for which a penalty has been
or may be imposed with respect to any Employee  Benefit Plan of GXPT.  There has
been no breach of fiduciary duty or responsibility  with respect to any Employee
Benefit Plan of GXPT. No Employee  Benefit Plan of GXPT or related trust has any
liability of any nature,  accrued or contingent,  including  without  limitation
liabilities for Taxes,  other than for routine payments to be made in due course
to participants and beneficiaries,  except as set forth in Section H of the GXPT
Disclosure Letter. GXPT does not have any formal plan or commitment,  whether or
not legally  binding,  to create any additional or modify any existing  Employee
Benefit  Plan  or  benefit  obligation  or  arrangement   described  in  Section
2.01(h)(i)).  Each  Employee  Benefit  Plan of GXPT which is a group health plan
within the meaning of Section  5000(b)(1) of the Code is and has been maintained
in full  compliance  with the  applicable  requirements  of Section 4980B of the
Code. Other than the health care  continuation  requirements of Section 4980B of
the Code, GXPT does not have any obligation to provide  post-retirement  medical
benefits or life insurance coverage or any deferred compensation benefits to any
present  or  former  employees.  There  is no  litigation,  arbitration,  claim,
governmental or other proceeding (formal or informal), or investigation pending,
threatened,  or (to the best of  GXPT's  knowledge)  in  prospect  (or any basis
therefor  known to GXPT) with  respect to any  Employee  Benefit Plan of GXPT or
related trust or with respect to any  fiduciary,  administrator,  or sponsor (in
its capacity as such) of any Employee  Benefit Plan. No Employee Benefit Plan of
GXPT or related trust and no such  obligation or arrangement is in violation of,
or in default with respect to, any law, rule, regulation, order, judgment, which
violation or default would have a material  adverse effect thereon or decree nor
is GXPT,  any Employee  Benefit Plan of GXPT, or any related  trust  required to
take any action in order to avoid any such  violation  or default.  No event has
occurred,  or is (to the best of GXPT's knowledge) threatened or about to occur,
which would constitute a prohibited transaction under Section 406 of ERISA.

            (iv) Each Pension Plan maintained for the employees of GXPT has been
qualified, from its inception,  under Section 401(a) of the Code and any related
trust has been an exempt  trust for such period  under  Section 501 of the Code.


                                       10


Each Pension Plan has been  operated in  accordance  with its terms.  No Pension
Plan which is subject to Title IV of ERISA has an  accumulated or waived funding
deficiency  within the meaning of Section 412 of the Code. No  investigation  or
review by the Internal Revenue Service is currently pending or (to the knowledge
of GXPT) is contemplated  in which the Internal  Revenue Service has asserted or
may assert that any Pension Plan is not qualified  under  Section  401(a) of the
Code or that any  related  trust is not exempt  under  Section  501 of the Code.
Neither  GXPT,  nor any  organization  to which  GXPT is a  successor  or parent
corporation, within the meaning of Section 4069(b) of ERISA, has divested itself
of any entity  maintaining  or with an  obligation  to contribute to any Pension
Plan  which had an  "amount  of  unfunded  benefit  liabilities,"  as defined in
Section 4001(a)(18) of ERISA, at the time of such divestiture.  No assessment of
any federal  taxes with  respect to any  Employee  Benefit Plan of GXPT has been
made or (to the knowledge of GXPT) is contemplated  against GXPT, or any related
trust of any Pension Plan of GXPT,  and nothing has occurred  which would result
in the  assessment  of  unrelated  business  taxable  income under the Code with
respect to any Employee Benefit Plan of GXPT. Form 5500's have been timely filed
with  respect to all  Pension  Plans of GXPT.  No event has  occurred or (to the
knowledge  of GXPT) is  threatened  or about to occur which would  constitute  a
reportable  event within the meaning of Section  4043(b) of ERISA.  No notice of
termination has been filed by the plan administrator pursuant to Section 4041 of
ERISA or issued by the Pension Benefit Guaranty  Corporation pursuant to Section
4042 of ERISA with respect to any Pension Plan of GXPT.

            (v) GXPT does not currently  contribute to, and has not  effectuated
either a complete or partial  withdrawal  from, any  multiemployer  Pension Plan
within the meaning of Section 3(37) of ERISA.

            (vi)  Section H of the GXPT  Disclosure  Letter  contains a true and
correct  statement  of the  names,  relationship  with  GXPT,  present  rates of
compensation  (whether  in the form of salary,  bonuses,  commissions,  or other
supplemental  compensation now or hereafter payable), and aggregate compensation
for the fiscal  years ended  December  31,  2002 and 2003 of (A) each  director,
officer,  or other employee of GXPT whose aggregate  compensation for the fiscal
years ended  December 31, 2002 and 2003  exceeded  US$25,000 or whose  aggregate
compensation presently exceeds the rate of US$25,000 per annum and (B) all sales
agents,  dealers, or distributors of GXPT. Since December 31, 2003, GXPT has not
changed the rate of compensation of any of its directors,  officers,  employees,
agents,  dealers, or distributors,  nor has any Employee Benefit Plan or program
of GXPT been instituted or amended to increase benefits thereunder.  There is no
contract,  agreement,  plan,  arrangement,  or understanding covering any person
that, individually or collectively, could give rise to the payment of any amount
that would not be deductible by GXPT by reason of Section 280G of the Code.

            (vii) GXPT has not extended or maintained  credit,  arranged for the
extension  of  credit,  or  renewed an  extension  of  credit,  in the form of a
personal  loan  to or for any  director  or  executive  officer  (or  equivalent
thereof) thereof.


                                       11


      (i) Patents, Trademarks, Et Cetera. GXPT does not own or have pending, and
is not licensed or otherwise  permitted  to use,  any  material  patent,  patent
application,   trademark,   trademark  application,   service  mark,  copyright,
copyright application,  franchise,  trade secret, computer program (in object or
source code or otherwise),  or other intangible property or asset (collectively,
"Intangibles"),  other than as  described  in  Section I of the GXPT  Disclosure
Letter.  Each  Intangible  set forth in such  Section  I of the GXPT  Disclosure
Letter is  validly  issued  and is  currently  in force and  uncontested  in all
jurisdictions  in which it is used or in which such use is  contemplated by GXPT
and may  reasonably be  contemplated  by GXPT after the  effective  date of this
Agreement  and the  closing of the  Offering.  Section I of the GXPT  Disclosure
Letter  contains a true and correct  listing of: (i) all  Intangibles  which are
owned  (either  in whole or in  part),  used by,  or  licensed  to GXPT or which
otherwise  relate to the  businesses  of GXPT,  and a  description  of each such
Intangible  which  identifies  its owner,  registrant,  or  applicant;  (ii) all
contracts,  agreements,  instruments, leases, and licenses and identification of
all parties thereto under which GXPT owns or uses any Intangible (whether or not
under  license from third  parties),  together  with the  identification  of the
owner,  registrant,  or applicant of each such Intangible;  (iii) all contracts,
agreements,  instruments, leases, and licenses and identification of all parties
thereto  under  which  GXPT  grants  the right to use any  Intangible;  (iv) all
validity,  infringement,  right-to-use,  or other  opinions of counsel  (whether
in-house or outside) which concern the validity, infringement, or enforceability
of any  Intangible  owned or controlled by a party other than GXPT which relates
to the businesses, properties, or assets of GXPT. Except as specified in Section
I of the GXPT Disclosure  Letter, to the knowledge of GXPT: (v) GXPT is the sole
and exclusive owner or licensee of, and (other than those  exclusively  licensed
by  GXPT to a third  party)  has the  right  to use,  all  Intangibles;  (vi) no
Intangible  is subject  to any order,  judgment,  decree,  contract,  agreement,
instrument,  lease, or license  restricting the scope of the use thereof;  (vii)
during the last five years,  GXPT has not been charged with, and has not charged
others with, unfair  competition or infringement of any Intangible,  or wrongful
use of confidential information,  trade secrets, or secret processes; and (viii)
GXPT is not using any  patentable  invention,  confidential  information,  trade
secret,  or secret  process of others.  There is no right  under any  Intangible
necessary to the businesses of GXPT as presently conducted or as it contemplates
conducting, except such as are so designated in Section I of the GXPT Disclosure
Letter. Except as described in Section I of the GXPT Disclosure Letter, GXPT has
not infringed, is not infringing, and has not received notice of infringement in
respect of the Intangibles or asserted  Intangibles of others, nor has GXPT been
advised  by  counsel  or  others  that  it is  infringing  or may  infringe  the
Intangibles  or asserted  Intangibles  of others if any  currently  contemplated
business  activity  is  effectuated.  To the  knowledge  of  GXPT,  there  is no
infringement  by others of  Intangibles  of GXPT. As far as GXPT can  reasonably
foresee,  there is no  Intangible  or  asserted  Intangible  of others  that may
materially  adversely  affect the financial  condition,  results of  operations,
businesses,  properties,  assets,  liabilities, or future prospects of GXPT. All
material contracts, agreements,  instruments, leases, and licenses pertaining to
Intangibles  to  which  GXPT is a  party,  or to  which  any of its  businesses,
properties,  or assets are subject,  are in compliance in all material  respects
with all laws, rules,  regulations,  orders,  judgments,  and decrees binding on
GXPT or to which any of its businesses,  properties, or assets are subject. GXPT
did not register any trademark,  tradename or service mark, design, or name used
by  GXPT  to  identify  its  products,  businesses,  or  services.  Neither  any
stockholder of GXPT, any director, officer, or employee of GXPT, any relative or
affiliate of any stockholder of GXPT, any such director,  officer,  or employee,
nor any other  corporation  or enterprise in which any  stockholder of GXPT, any
such director,  officer,  or employee,  or any such relative or affiliate had or
now  has a 5% or  greater  equity  or  voting  or  other  substantial  interest,
possesses any Intangible which relates to the businesses of GXPT.


                                       12


      (j) Questionable Payments. Neither GXPT, nor any director, officer, agent,
employee, or other person associated with, or acting on behalf of, GXPT, nor any
stockholder of GXPT has,  directly or indirectly:  used any corporate  funds for
unlawful  contributions,   gifts,  entertainment,  or  other  unlawful  expenses
relating to political activity; made any unlawful payment to foreign or domestic
government officials or employees or to foreign or domestic political parties or
campaigns from corporate  funds;  violated any provision of the Foreign  Corrupt
Practices Act of 1977, as amended; or made any bribe, rebate, payoff,  influence
payment, kickback, or other unlawful payment.

      (k)  Authority.  GXPT has all  requisite  power and  authority to execute,
deliver, and perform this Agreement. All necessary corporate proceedings of GXPT
have been duly taken to authorize the execution,  delivery,  and  performance of
this Agreement thereby. This Agreement has been duly authorized,  executed,  and
delivered by GXPT, constitutes the legal, valid, and binding obligation of GXPT,
and is enforceable as to GXPT in accordance with its terms.  Except as otherwise
set  forth  in this  Agreement,  no  consent,  authorization,  approval,  order,
license,  certificate,  or permit of or from, or declaration or filing with, any
federal,  state,  local, or other  governmental  authority or any court or other
tribunal is required by GXPT for the execution, delivery, or performance of this
Agreement by GXPT. No consent of any party to any material contract,  agreement,
instrument,  lease,  license,  arrangement,  or understanding to which GXPT is a
party,  or to which  it or any of its  businesses,  properties,  or  assets  are
subject,  is  required  for the  execution,  delivery,  or  performance  of this
Agreement  (except such consents referred to in Section K of the GXPT Disclosure
Letter); and the execution, delivery, and performance of this Agreement will not
(if the  consents  referred  to in Section K of the GXPT  Disclosure  Letter are
obtained prior to the Closing) violate, result in a breach of, conflict with, or
(with or without  the giving of notice or the  passage of time or both)  entitle
any party to  terminate  or call a default  under,  entitle any party to receive
rights or  privileges  that such party was not  entitled to receive  before this
Agreement was executed  under,  or create any  obligation on the part of GXPT to
which it was not subject  immediately  before this Agreement was executed under,
any term of any such material contract,  agreement,  instrument, lease, license,
arrangement,  or understanding,  or violate or result in a breach of any term of
the certificate of incorporation (or other charter document) or by-laws of GXPT,
or (if the  provisions of this  Agreement are  satisfied)  violate,  result in a
breach of, or conflict  with any law,  rule,  regulation,  order,  judgment,  or
decree binding on GXPT or to which any of its businesses,  properties, or assets
are subject,  which violation or breach would have a material  adverse effect on
GXPT. Neither GXPT, nor any of its officers, directors, employees, or agents has
employed any broker or finder or incurred any liability for any fee, commission,
or other compensation  payable by any person on account of alleged employment as
a broker or finder, or alleged performance of services as a broker or finder, in
connection  with  or  as  a  result  of  this  Agreement  or  the   transactions
contemplated hereby and in connection herewith.

      (l) Status of Shares of GXPT Common Stock To Be Issued. The shares of GXPT
Common Stock to be issued pursuant to Section 1.02(a) hereof,  and, in any case,
the shares of GXPT Common Stock issuable pursuant to Section 3.01(p) hereof, are
validly authorized and, when the such shares of GXPT Common Stock have been duly
delivered  pursuant to the terms of this  Agreement,  such shares of GXPT Common
Stock will be validly issued,  fully paid, and  nonassessable  and will not have
been issued,  owned or held in violation of any  preemptive  or similar right of
stockholder.


                                       13


      (m) Insurance.  All policies of fire and other insurance  against casualty
and other losses and public liability insurance carried by GXPT are described in
Section M of the GXPT Disclosure  Letter (including the risks covered and limits
of such  policies) and are in full force and effect.  All premiums in respect of
such  policies for which  premium  notices have been  received have been paid in
full as the same become due and payable.  GXPT has not failed to give any notice
or present any claim under any insurance policy in due and timely fashion. There
are no actual claims or claims  threatened  in writing  against GXPT which could
come  within  the scope of such  coverage  nor are any such  policies  currently
threatened  with  cancellation.   There  are  no  outstanding   requirements  or
recommendations  by any  insurance  company that issued a policy with respect to
any of the respective  assets,  the businesses,  or operations of GXPT or by any
Board of Fire Underwriters or other body exercising  similar functions or by any
governmental authority requiring or recommending any repairs or other work to be
done  on,  or with  respect  to,  any of the  assets  of GXPT  or  requiring  or
recommending  any  equipment or  facilities to be installed on any premises from
which the  businesses  of GXPT is  conducted  or in  connection  with any of the
respective  assets  thereof.  GXPT does not have any  knowledge  of any material
proposed  increase  in  applicable  insurance  rates  or of  any  conditions  or
circumstances  applicable  to the  businesses  thereof that might result in such
increases.   No  such  policy  is  terminable  by  virtue  of  the  transactions
contemplated by this Agreement.

      (o) Trading Matters. At the date hereof and at the Closing Date:

            (i) the GXPT Common Stock is not  actively  traded and quoted in the
pink sheet market; and

            (ii) GXPT has not,  and shall not have taken any  action  that would
preclude,  or otherwise  jeopardize,  the inclusion of the GXPT Common Stock for
quotation on the OTC Bulletin Board.

      (p) Reorganization.

            (i) GXPT has not taken, has not agreed to take and will not take any
action (other than actions contemplated by this Agreement) that could reasonably
be expected to prevent the  transactions  contemplated  by this  Agreement  from
constituting  a  "reorganization"  under  section  368(b)  of the  Code or as an
acquisition  of in excess of 80% of the stock of a  corporation  in exchange for
property under Section 351 of the Code. GXPT is not aware of any agreement, plan
or  other  circumstance  that  could  reasonably  be  expected  to  prevent  the
transactions contemplated by this Agreement from so qualifying.

            (ii) GXPT has no plan or  intention  to  reacquire,  and,  to GXPT's
knowledge,  no person related to GXPT within the meaning of Treasury Regulations
Section 1.368-1 has a plan or intention to acquire, any of the GXPT Common Stock
pursuant to Section 1.02(a) hereof.

      (q) Completeness of Disclosure.  No  representation or warranty by GXPT in
this Agreement,  any of the financial  statement or other instruments or written
statements  provided  to the Advaxis  Shareholders  hereunder  or in  connection
herewith,  the GXPT  Disclosure  Letter or any  Schedules  or Exhibits  attached
hereto are made a part hereof contains or, and at the Closing Date will contain,
an untrue statement of material fact or omits or, at the Closing Date, will omit
to state a material fact required to be stated  therein or necessary to make the
statements made not misleading.


                                       14


      (r) Periodic Reporting.

            (i) The GXPT Common Stock has been  registered  under  Section 12 of
the Securities Exchange Act of 1934, as amended (the "Exchange Act") and GXPT is
subject to the  periodic  reporting  requirements  of Section 13 of the Exchange
Act. GXPT has  heretofore  provided or made available to Advaxis and the Advaxis
Shareholders  true,  complete,   and  correct  copies  of  all  forms,  reports,
schedules,  statements, and other documents required to be filed by it under the
Exchange  Act  since at least  December  31,  2001 as such  documents  have been
amended  since the time of the filing  thereof (the "GXPT SEC  Documents").  The
GXPT SEC Documents,  including, without limitation, any financial statements and
schedules included therein, at the time filed or, if subsequently amended, as so
amended, (i) did not contain any untrue statement of a material fact required to
be stated  therein or  necessary  in order to make the  statements  therein  not
misleading and (ii) complied in all respects with the applicable requirements of
the  Exchange  Act and the  applicable  rules and  regulations  thereunder.  The
financial  statements  included in the GXPT SEC Documents complied when filed as
to form in all material  respects with applicable  accounting  requirements  and
with the published rules and regulations of the SEC with respect  thereto,  have
been prepared in accordance with generally accepted accounting principles in the
United States, applied on a consistent basis during the periods involved (except
as may be indicated in the notes thereto or, in the case of unaudited  financial
statements,  as permitted by the rules and  regulations of the  Commission)  and
fairly present,  subject in the case of the unaudited financial  statements,  to
customary year end audit  adjustments,  the financial position of GXPT as at the
dates thereof and the results of its operations  and cash flows.

            (ii) Except as set forth in Section R of the GXPT Disclosure Letter,
the Company maintains disclosure controls and procedures required by Rule 13a-15
or 15d-15 under the Exchange Act; such controls and  procedures are effective to
ensure that all material information concerning the Company and its subsidiaries
is  made  known  on a  timely  basis  to the  individuals  responsible  for  the
preparation  of the Company's  filings with the SEC and other public  disclosure
documents.  To the extent any exist,  GXPT has  delivered  or made  available to
Advaxis copies of, all written  descriptions  of, and all policies,  manuals and
other documents promulgating, such disclosure controls and procedures. Except as
set forth in Section R of the GXPT Disclosure Letter, to GXPT's knowledge,  each
director and executive  officer thereof has filed with the SEC on a timely basis
all  statements  required by Section 16(a) of the Exchange Act and the rules and
regulations  thereunder since January 1, 2002. As used in Section  2.01(r),  the
term "file" shall be broadly construed to include any manner in which a document
or  information  is furnished,  supplied or otherwise made available to the SEC.

            (iii)  Except  as set  forth in  Section  R of the  GXPT  Disclosure
Letter, the Chief Executive Officer and the Chief Financial Officer of GXPT have
signed, and the Company has furnished to the SEC, all certifications required by
Sections  302 and 906 of the  Sarbanes-Oxley  Act of 2002;  such  certifications
contain no  qualifications  or exceptions to the matters  certified  therein and
have not been  modified or  withdrawn;  and neither GXPT nor any of its officers
has received notice from any governmental  entity questioning or challenging the
accuracy,  completeness,  form  or  manner  of  filing  or  submission  of  such
certifications.


                                       15


            (iv) GXPT has  heretofore  has provided or made available to Advaxis
complete and correct copies of all certifications filed with the SEC pursuant to
Sections  302  and  906 of  Sarbanes-Oxley  Act of 2002  and  hereby  reaffirms,
represents  and  warrants to Advaxis the  matters  and  statements  made in such
certificates.

      (s) Compliance with Law and Government Regulations.

            (i)  GXPT  is in  compliance  with,  and  is not  in  violation  of,
applicable  federal,  state,  local or foreign  statutes,  laws and  regulations
(including without  limitation,  any applicable  building,  zoning or other law,
ordinance  or  regulation)  affecting  its  properties  or the  operation of its
business.  GXPT is not subject to any order, decree,  judgment or other sanction
of any court, administrative agency or other tribunal.

            (ii) Each of GXPT, its directors and its senior  financial  officers
has consulted with GXPT's  independent  auditors and with GXPT's outside counsel
with  respect  to, and (to the extent  applicable  to GXPT) is  familiar  in all
material respects with all of the requirements of,  Sarbanes-Oxley  Act of 2002.
GXPT is in compliance with the provisions of such act applicable to it as of the
date hereof and has implemented  such programs and has taken  reasonable  steps,
upon  the  advice  of  GXPT's   independent   auditors   and  outside   counsel,
respectively,  to ensure GXPT's future  compliance  (not later than the relevant
statutory and regulatory  deadlines  therefore)  with all provisions of such act
which shall become applicable thereto after the date hereof.

      (t) Legal  Proceedings and History.  GXPT hereby  represents that,  unless
otherwise  disclosed  herein or in Section T of the GXPT Disclosure  Letter,  no
officer,  director or affiliate of GXPT, has been,  within the five years ending
on the Closing Date, a party to any bankruptcy  petition  against such person or
against  any  business  of which such  person  was  affiliated;  convicted  in a
criminal  proceeding  or subject  to a pending  criminal  proceeding  (excluding
traffic violations and other minor offenses);  subject to any order, judgment or
decree,  not  subsequently  reversed,  suspended  or  vacated,  of any  court of
competent   jurisdiction,   permanently  or  temporarily   enjoining,   barring,
suspending  or otherwise  limiting  their  involvement  in any type of business,
securities or banking activities;  or found by a court of competent jurisdiction
in a civil action,  by the SEC or the Commodity  Futures  Trading  Commission to
have violated a federal or state securities or commodities law, and the judgment
has not been reversed, suspended or vacated.

      SECTION 2.02  REPRESENTATIONS  AND  WARRANTIES OF ADVAXIS.  Advaxis hereby
represents and warrants to, and agrees with, GXPT:

      (a) Organization and  Qualification.  Other than as set forth in Section A
of the  disclosure  letter,  of even date  herewith,  from  Advaxis to GXPT (the
"Advaxis  Disclosure  Letter"),   Advaxis  has  no  subsidiaries  or  affiliated
corporation  or owns any interest in any other  enterprise  (whether or not such
enterprise is a corporation).  Advaxis is a corporation duly organized,  validly
existing,  and in good standing under the laws of the State of Delaware with all
requisite  power and  authority,  and all  necessary  consents,  authorizations,
approvals,  orders,  licenses,  certificates,  and  permits  of  and  from,  and
declarations and filings with, all federal, state, local, and other governmental
authorities and all courts and other tribunals,  to own, lease, license, and use
its  properties  and  assets and to carry on the  businesses  in which it is now
engaged and the businesses in which it  contemplates.  Advaxis is duly qualified
to transact the  businesses  in which it is engaged and is in good standing as a
foreign  corporation  in every  jurisdiction  in which its  ownership,  leasing,
licensing,  or use of property or assets or the conduct of its businesses  makes
such qualification necessary.


                                       16


      (b)  Capitalization.  Immediately  prior to the  Closing,  the  authorized
capital stock of Advaxis consists of 100,000 shares of Advaxis Common Stock, par
value $0.001 per share,  40,000 of which shares are issued and  outstanding  and
50,000 shares of preferred  stock,  par value $0.001 per share,  6,000 shares of
preferred  stock have been  designated  as Series A Preferred  Stock,  par value
$0.001 per share of which 3650.46 shares are issued and outstanding. Each of the
outstanding  shares of  Advaxis  Capital  Stock is validly  authorized,  validly
issued,  fully paid, and nonassessable,  has not been issued and is not owned or
held in violation of any preemptive  right of stockholders and by the owners set
forth in Section A of the Advaxis Disclosure Letter, in each case free and clear
of all liens, security interests, pledges, charges, encumbrances,  stockholders'
agreements, and voting trusts (other than the existing stockholders agreement to
be terminated prior to the Closing). Other than as set forth in Section A of the
Advaxis  Disclosure  Letter,  there is no  commitment,  plan, or  arrangement to
issue,  and no  outstanding  option,  warrant,  or other  right  calling for the
issuance  of,  any  share of  Advaxis  Capital  Stock or any  security  or other
instrument  convertible  into,  exercisable  for,  or  exchangeable  for Advaxis
Capital  Stock.  Other than as set forth in Section A of the Advaxis  Disclosure
Letter, there is outstanding no security or other instrument convertible into or
exercisable or exchangeable for Advaxis Capital Stock.

      (c)  Financial  Condition.  Advaxis has delivered to GXPT true and correct
copies of the  following:  audited  balance sheets of Advaxis as of December 31,
2002 and December 31, 2003 and  unaudited  balance  sheets of Advaxis as of June
30, 2003 and June 30, 2004; and audited statements of operations,  statements of
stockholders'  equity, and statements of cash flows of Advaxis for the two years
ended  December  31, 2002 and  December  31, 2003 and  unaudited  statements  of
operations,  statements of stockholders' equity, and statements of cash flows of
Advaxis for the periods ended June 30, 2003 and June 30, 2004. Each such balance
sheet  presents  fairly  the  financial  condition,   assets,  liabilities,  and
stockholders'  equity of Advaxis as of its date;  each such  statement of income
and consolidated  statement of stockholders'  equity presents fairly the results
of operations of Advaxis for the period  indicated;  and each such  statement of
cash flows presents  fairly the information  purported to be shown therein.  The
audited  financial  statements  referred to in this  Section  2.02(c)  have been
prepared  in  accordance  with GAAP in the United  States  consistently  applied
throughout the periods involved and are in accordance with the books and records
of Advaxis.  Except as set forth in Section C of the Advaxis  Disclosure Letter,
since June 30, 2004:

            (i)  There  has at no time  been a  material  adverse  change in the
      financial condition, results of operations,  business, properties, assets,
      liabilities, or future prospects of Advaxis.

            (ii) Advaxis has not  authorized,  declared,  paid,  or effected any
      dividend or  liquidating or other  distribution  in respect of its capital
      stock or any direct or indirect redemption,  puchase, or other acquisition
      of any stock of Advaxis (other than the pay-in-kind dividend to holders of
      Series A Preferred Stock as of August 15, 2004).


                                       17


            (iii) The  operations  and businesses of Advaxis have been conducted
      in all respects only in the ordinary  course,  except for the transactions
      contemplated hereby and in connection herewith.

            (iv)  There  has  been no  accepted  purchase  order  or  quotation,
      arrangement,  or understanding for future sale of the products or services
      of Advaxis that Advaxis expects will not be profitable.

            (v) Advaxis has not suffered an  extraordinary  loss (whether or not
      covered by insurance) or waived any right of substantial value.

There is no fact known to Advaxis which materially  adversely  affects or in the
future (as far as Advaxis  can  reasonably  foresee)  may  materially  adversely
affect the financial  condition,  results of operations,  business,  properties,
assets,  liabilities,  or future prospects of Advaxis;  provided,  however, that
Advaxis  expresses  no opinion as to  political  or economic  matters of general
applicability.  Advaxis  has made  known,  or  caused to be made  known,  to the
accountants   or  auditors  who  have   prepared,   reviewed,   or  audited  the
aforementioned   consolidated   financial  statements  all  material  facts  and
circumstances  which could  affect the  preparation,  presentation,  accuracy or
completeness  thereof. The statement of operations of Advaxis for the year ended
December 31, 2003 shall be audited in accordance  with GAAP in the United States
consistently applied throughout the periods involved.

      (d)  Tax and  Other  Liabilities.  Advaxis  does  not  have  any  material
liability of any nature, accrued or contingent,  including,  without limitation,
liabilities for Taxes, and liabilities to customers or suppliers, other than the
following:

            (i)  Liabilities  for  which  full  provision  has been  made on the
      balance sheet and the notes  thereto,  if any (the "Last  Advaxis  Balance
      Sheet")  as of June 30,  2004 (the  "Last  Advaxis  Balance  Sheet  Date")
      referred to in Section 2.02(c); and

            (ii) Other liabilities  arising since the Last Advaxis Balance Sheet
      Date and prior to the  Closing  Date in the  ordinary  course of  business
      (which shall not include  liabilities to customers on account of defective
      products or services) or in connection with the transactions  contemplated
      hereby  or in  connection  herewith  which are not  inconsistent  with the
      representations  and warranties of Advaxis or any other  provision of this
      Agreement.

Without  limiting  the  generality  of  the  foregoing,  the  amounts  set up as
provisions  for Taxes on the Last Advaxis  Balance Sheet are  sufficient for all
accrued and unpaid Taxes of Advaxis,  whether or not due and payable and whether
or not disputed,  under tax laws, as in effect on the Last Advaxis Balance Sheet
Date or now in  effect,  for the  period  ended on such date and for all  fiscal
periods  prior  thereto.  The  execution,  delivery,  and  performance  of  this
Agreement  by Advaxis  will not cause any Taxes to be payable  other than by the
stockholders of Advaxis or cause any lien,  charge, or encumbrance to secure any
Taxes to be created either immediately or upon the nonpayment of any Taxes other


                                       18


than on the  properties or assets of the  stockholders  of Advaxis.  Advaxis has
filed all federal, state, local, and foreign tax returns required to be filed by
it; has  delivered to the GXPT a true and correct copy of each such return which
was filed since incorporation;  has paid (or has established on the Last Advaxis
Balance  Sheet a reserve  for) all Taxes,  assessments,  and other  governmental
charges payable or remittable by it or levied upon it or its properties, assets,
income, or franchises which are due and payable; and has delivered to the GXPT a
true and correct  copy of any report as to  adjustments  received by it from any
taxing  authority  since  incorporation  and a statement  as to any  litigation,
governmental or other proceeding (formal or informal), or investigation pending,
threatened, or in prospect with respect to any such report or the subject matter
of such report.

      (e) Litigation and Claims.  There is no  litigation,  arbitration,  claim,
governmental or other proceeding (formal or informal), or investigation pending,
threatened,  or, to the best of Advaxis's  knowledge,  in prospect (or any basis
therefor  known to Advaxis),  with respect to Advaxis or any of its  businesses,
properties,  or assets.  Advaxis is not  affected by any  present or  threatened
strike or other labor  disturbance  nor to the knowledge of Advaxis is any union
attempting to represent any employee of Advaxis as collective  bargaining agent.
Advaxis is not in violation  of, or in default  with respect to, any law,  rule,
regulation,  order,  judgment, or decree which violation or default would have a
material adverse effect upon Advaxis; nor is Advaxis required to take any action
in order to avoid such violation or default.

      (f) Properties.

            (i) Advaxis does not own any legal or equitable interest in any real
      property.  Advaxis  has good  title to all  other  properties  and  assets
      material to Advaxis,  used in its business or owned by it (except real and
      other  properties  and assets as are held  pursuant  to leases or licenses
      described in Section F of the Advaxis Disclosure  Letter),  free and clear
      of  all  liens,  mortgages,  security  interests,  pledges,  charges,  and
      encumbrances  (except  such as are  listed  in  Section  F of the  Advaxis
      Disclosure Letter).

            (ii) All accounts and notes receivable reflected on the Last Advaxis
      Balance Sheet,  or arising since the Last Advaxis Balance Sheet Date, have
      been collected,  or are and will be good and collectible,  in each case at
      the aggregate recorded amounts thereof without right of recourse, defense,
      deduction,  return of goods, counterclaim,  offset, or set off on the part
      of the obligor, and, if not collected, can reasonably be anticipated to be
      paid within 180 days of the date incurred.

            (iii) All  production  in progress of Advaxis is usable,  in current
      production and marketable,  on a normal basis in the existing  business of
      Advaxis.

            (iv)  Attached  as Section F of the Advaxis  Disclosure  Letter is a
      true and  complete  list of the  classes of all  tangible  properties  and
      assets  owned by Advaxis  or leased or  licensed  by Advaxis  from or to a
      third party (including inventory but not including Intangibles, as defined
      in Section 2.02(i)), and with respect to such properties and assets leased
      or licensed by Advaxis from or to a third  party,  a  description  of such
      lease or license.  All such properties and assets (including  Intangibles)
      owned by Advaxis are  reflected on the Last Advaxis  Balance Sheet (except
      for  acquisitions  subsequent  to the Last Advaxis  Balance Sheet Date and
      prior to the Closing  Date which are set forth in Section F of the Advaxis
      Disclosure  Letter or are approved in writing by GXPT). All real and other
      tangible  properties  and assets owned by Advaxis or leased or licensed by
      Advaxis  from  or to a  third  party  are in  good  and  usable  condition
      (reasonable  wear and tear  which is not such as to affect  adversely  the
      operation of the business of Advaxis excepted).


                                       19


            (v) To the best of Advaxis's  knowledge,  no real property  owned by
      Advaxis or leased or licensed by Advaxis  from or to a third party lies in
      an area which is, or will be,  subject to zoning,  use, or  building  code
      restrictions  which  would  prohibit,   and,  to  the  best  of  Advaxis's
      knowledge,  no state of facts  relating  to the  actions  or  inaction  of
      another person or entity or his or its ownership, leasing, or licensing of
      any real or personal  property  exists or will exist which would  prevent,
      the  continued  effective  ownership,  leasing,  or licensing of such real
      property  in  the  businesses  in  which  Advaxis  is now  engaged  or the
      businesses in which it contemplates engaging.

            (vi) The  properties  and assets  (including  Intangibles)  owned by
      Advaxis  (other than those leased or licensed by Advaxis to a third party)
      or leased or licensed by Advaxis  from a third party  constitute  all such
      properties  and assets  which are  necessary to the business of Advaxis as
      presently conducted or as it contemplates conducting.

            (vii) Advaxis has not caused or permitted its businesses properties,
      or assets to be used to generate,  manufacture,  refine, transport, treat,
      store,  handle,  dispose of, transfer,  produce,  or process any Hazardous
      Substance  (as such  term is  defined  in  Section  2.01(f)(v))  except in
      compliance  with  all  applicable  laws,   rules,   regulations,   orders,
      judgments,  and decrees,  and has not caused or permitted  the Release (as
      such term is defined in Section  2.01(f)(v)) of any Hazardous Substance on
      or off the site of any property of Advaxis.

      (g) Contracts and Other  Instruments.  Section G of the Advaxis Disclosure
Letter contains a true and correct  statement of the information  required to be
contained therein regarding material contracts, agreements, instruments, leases,
licenses,  arrangements,  or understandings with respect to Advaxis. Advaxis has
furnished to GXPT: (i) the certificate of  incorporation  and by-laws of Advaxis
(or, in each case, the comparable  charter  documents,  if any, under applicable
law) and all  amendments  thereto,  as  presently  in effect,  certified  by the
Secretary or an authorized signatory of Advaxis and (ii) the following: (A) true
and  correct  copies of all  material  contracts,  agreements,  and  instruments
referred to in Section G of the Advaxis  Disclosure Letter; (B) true and correct
copies of all  material  leases  and  licenses  referred  to in Section G of the
Advaxis Disclosure Letter; and (C) true and correct written  descriptions of all
material  supply,  distribution,  agency,  financing,  or other  arrangements or
understandings referred to in Section G of the Advaxis Disclosure Letter. Except
as set forth in Section G of the Advaxis Disclosure Letter, Advaxis is not party
to any employment  agreement with any employee  thereof.  Except as set forth in
Section G of the Advaxis Disclosure Letter, to the best of Advaxis's  knowledge,
none of Advaxis or any other party to any such contract, agreement,  instrument,
lease,  or license is now or expects in the future to be in  violation or breach
of, or in default with respect to complying  with,  any term  thereof,  and each
such material  contract,  agreement,  instrument,  lease,  or license is in full
force and is (to the best of Advaxis's  knowledge in the case of third  parties)


                                       20


the legal,  valid, and binding obligation of the parties thereto and (subject to
applicable bankruptcy,  insolvency,  and other laws affecting the enforceability
of creditors' rights generally) is enforceable as to them in accordance with its
terms.  Each such material supply,  distribution,  agency,  financing,  or other
arrangement  or  understanding   is  a  valid  and  continuing   arrangement  or
understanding;  none of Advaxis or any other  party to any such  arrangement  or
understanding  has given notice of termination or taken any action  inconsistent
with the continuance of such  arrangement or  understanding;  and the execution,
delivery,  and  performance  of this  Agreement  will  not  prejudice  any  such
arrangement or understanding in any way. Except as set forth in Section G of the
Advaxis  Disclosure Letter,  Advaxis enjoys peaceful and undisturbed  possession
under all leases and licenses under which it is operating.  Advaxis is not party
to or bound by any contract, agreement, instrument, lease, license, arrangement,
or understanding,  or subject to any charter or other restriction, which has had
or,  to the best of  Advaxis's  knowledge,  may in the  future  have a  material
adverse effect on the financial  condition,  results of operations,  businesses,
properties,  assets,  liabilities, or future prospects of Advaxis and, following
the consummation of the transactions  contemplated hereby, GXPT. Advaxis has not
engaged  within the last five years in, is engaging  in, or intends to engage in
any transaction with, or has had within the last five years, now has, or intends
to have any contract,  agreement,  instrument,  lease, license,  arrangement, or
understanding  with,  any  stockholder  of Advaxis,  any director,  officer,  or
employee of Advaxis (except for employment agreements listed in Section G of the
Advaxis Disclosure Letter and employment and compensation arrangements described
in Section G of the Advaxis Disclosure Letter), any relative or affiliate of any
stockholder of Advaxis,  any such director,  officer, or employee,  or any other
corporation  or  enterprise  in  which  any  stockholder  of  Advaxis,  any such
director,  officer,  or employee,  or any such relative or affiliate then had or
now has a 5% or greater equity or voting or other  substantial  interest,  other
than  those  listed and so  specified  in  Section G of the  Advaxis  Disclosure
Letter.  The stock ledgers and stock  transfer books and the minute book records
of Advaxis  relating to all  issuances and transfers of stock by Advaxis and all
proceedings  of the  stockholders  and the  Board of  Directors  and  committees
thereof  of  Advaxis  since its  incorporation  made  available  to GXPT are the
original  stock  ledgers and stock  transfer  books and minute  book  records of
Advaxis or exact copies thereof. Advaxis is not in violation or breach of, or in
default with respect to, any term of its certificate of incorporation or by-laws
(or the comparable charter document, if any, under applicable law).

      (h) Employees.

            (i)  Advaxis  does  not  have,  or   contribute   to,  any  pension,
      profit-sharing,  option,  other  incentive  plan,  or any  other  type  of
      Employee  Benefit Plan or has any  obligation to or customary  arrangement
      with employees for bonuses, incentive compensation,  vacations,  severance
      pay,  sick  pay,  sick  leave,  insurance,   service  award,   relocation,
      disability,  tuition refund,  or other benefits,  whether oral or written,
      except as set forth in Section H of the Advaxis Disclosure Letter. Advaxis
      has furnished to GXPT true and correct copies, of all documents evidencing
      plans,  obligations,  or  arrangements  referred  to in  Section  H of the
      Advaxis  Disclosure  Letter (or true and correct written summaries of such
      plans,  obligations,  or  arrangements  to the  extent  not  evidenced  by
      documents)  and true and correct  copies,  so initialed,  of all documents
      evidencing trusts,  summary plan descriptions,  and any other summaries or
      descriptions relating to any such plans.


                                       21


            (ii) Section H of the Advaxis  Disclosure Letter contains a true and
      correct statement of the names,  relationship with Advaxis,  present rates
      of compensation (whether in the form of salary, bonuses,  commissions,  or
      other supplemental  compensation now or hereafter payable),  and aggregate
      compensation  for the fiscal  year  ended  December  31,  2003 of (A) each
      director,   officer,   or  other  employee  of  Advaxis  whose   aggregate
      compensation  for  the  fiscal  year  ended  December  31,  2003  exceeded
      US$25,000 or whose aggregate  compensation  presently  exceeds the rate of
      US$25,000 per annum and (B) all sales agents,  dealers, or distributors of
      Advaxis.  Since  December  31,  2003,  Advaxis has not changed the rate of
      compensation  of  any  of  its  directors,  officers,  employees,  agents,
      dealers, or distributors,  nor has any Employee Benefit Plan or program of
      Advaxis been instituted or amended to increase benefits thereunder.

      (i) Patents,  Trademarks, Et Cetera. Advaxis does not own or have pending,
and is not  licensed or otherwise  permitted  to use,  any material  Intangible,
other than as described in Section I of the Advaxis Disclosure Letter. Except as
set forth in Section I of the Advaxis  Disclosure  Letter,  each  Intangible  is
validly issued and is currently in force and uncontested in all jurisdictions in
which it is used or in which such use is contemplated.  Section I of the Advaxis
Disclosure  Letter  contains a true and correct  listing of: (i) all Intangibles
which are owned (either in whole or in part), used by, or licensed to Advaxis or
which otherwise  relate to the businesses of Advaxis,  and a description of each
such Intangible which identifies its owner, registrant,  or applicant;  (ii) all
contracts,  agreements,  instruments, leases, and licenses and identification of
all parties thereto under which Advaxis owns or uses any Intangible  (whether or
not under license from third parties),  together with the  identification of the
owner,  registrant,  or applicant of each such Intangible;  (iii) all contracts,
agreements,  instruments, leases, and licenses and identification of all parties
thereto under which Advaxis grants the right to use any Intangible; and (iv) all
validity,  infringement,  right-to-use,  or other  opinions of counsel  (whether
in-house or outside) which concern the validity, infringement, or enforceability
of any  Intangible  owned or  controlled  by a party  other than  Advaxis  which
relates to the businesses, properties, or assets of Advaxis. Except as specified
in  Section I of the  Advaxis  Disclosure  Letter:  (i)  Advaxis is the sole and
exclusive  owner or licensee of, and (other than those  licensed by Advaxis to a
third  party)  has the right to use,  all  Intangibles;  (ii) no  Intangible  is
subject to any order, judgment, decree, contract, agreement,  instrument, lease,
or license restricting the scope of the use thereof;  (iii) during the last five
years,  Advaxis has not been  charged  with,  and has not charged  others  with,
unfair  competition,   infringement  of  any  Intangible,  or  wrongful  use  of
confidential  information,  trade secrets, or secret processes; and (iv) Advaxis
is not using any patentable invention,  confidential information,  trade secret,
or secret process of others. There is no right under any Intangible necessary to
the  businesses  of  Advaxis  as  presently  conducted  or  as  it  contemplates
conducting,  except  such  as are so  designated  in  Section  I of the  Advaxis
Disclosure  Letter.  Except as set forth in Section I of the Advaxis  Disclosure
Letter,  Advaxis has not  infringed,  is not  infringing,  and has not  received
notice of infringement in respect of the Intangibles or asserted  Intangibles of
others,  nor has Advaxis been advised by counsel or others that it is infringing
or may  infringe  the  Intangibles  or  asserted  Intangibles  of  others if any
currently  contemplated  business  activity is effectuated.  To the knowledge of
Advaxis,  there is no infringement  by others of Intangibles of Advaxis.  To the
knowledge of Advaxis,  there is no Intangible  or asserted  Intangible of others
that may  materially  adversely  affect  the  financial  condition,  results  of
operations,  businesses, properties, assets, liabilities, or future prospects of


                                       22


Advaxis. All contracts, agreements, instruments, leases, and licenses pertaining
to Intangibles to which Advaxis is a party,  or to which any of its  businesses,
properties,  or assets are  subject,  are in  compliance  with all laws,  rules,
regulations,  orders,  judgments, and decrees binding on Advaxis or to which any
of its  businesses,  properties,  or assets are subject.  Except as set forth in
Section I of the Advaxis Disclosure Letter, there is no trademark,  tradename or
service  mark  used  by  Advaxis  to  identify,   respectively,   its  products,
businesses,  or  services.  Except  as set  forth in  Section  I of the  Advaxis
Disclosure Letter, none of the Advaxis Shareholders,  any director,  officer, or
employee of Advaxis, any relative or affiliate of any Advaxis Shareholder or any
such director,  officer, or employee, nor any other corporation or enterprise in
which the Advaxis Shareholder,  any such director,  officer, or employee, or any
such  relative or affiliate  had or now has a 5% or greater  equity or voting or
other  substantial  interest,  possesses  any  Intangible  which  relates to the
businesses of Advaxis.

      (j) Questionable  Payments.  Neither Advaxis,  nor any director,  officer,
agent,  employee,  or other  person  associated  with,  or acting on behalf  of,
Advaxis,  nor the Advaxis  Shareholder,  has,  directly or indirectly:  used any
corporate  funds for  unlawful  contributions,  gifts,  entertainment,  or other
unlawful expenses relating to political  activity;  made any unlawful payment to
foreign or domestic government  officials or employees or to foreign or domestic
political  parties or campaigns from corporate funds;  violated any provision of
the  Foreign  Corrupt  Practices  Act of 1977,  as  amended;  or made any bribe,
rebate, payoff, influence payment, kickback, or other unlawful payment.

      (k) Authority.  Advaxis has all requisite  power and authority to execute,
deliver,  and perform this  Agreement.  All necessary  corporate  proceedings of
Advaxis  have  been  duly  taken  to  authorize  the  execution,  delivery,  and
performance  of  this  Agreement  by  Advaxis.  This  Agreement  has  been  duly
authorized,  executed,  and delivered by Advaxis,  constitutes the legal, valid,
and  binding  obligation  of  Advaxis,  and  is  enforceable  as to  Advaxis  in
accordance with its terms.  Except as otherwise set forth in this Agreement,  no
consent,  authorization,  approval, order, license, certificate, or permit of or
from,  or  declaration  or filing with,  any  federal,  state,  local,  or other
governmental authority or any court or other tribunal is required by Advaxis for
the execution, delivery, or performance of this Agreement by Advaxis. No consent
of any party to any material contract,  agreement,  instrument,  lease, license,
arrangement,  or  understanding  to which Advaxis is a party, or to which its or
any of its businesses,  properties,  or assets are subject,  is required for the
execution,  delivery,  or performance  of this  Agreement  (except such consents
referred to in Section K of the Advaxis Disclosure  Letter);  and the execution,
delivery,  and performance of this Agreement will not (if the consents  referred
to in  Section K of the  Advaxis  Disclosure  Letter are  obtained  prior to the
Closing) violate,  result in a breach of, conflict with, or (with or without the
giving of notice or the passage of time or both)  entitle any party to terminate
or call a default under,  entitle any party to receive rights or privileges that
such party was not entitled to receive  immediately  before this  Agreement  was
executed under, or create any obligation on the part of Advaxis or GXPT to which
it was not subject  immediately  before this Agreement was executed  under,  any
term of any such  material  contract,  agreement,  instrument,  lease,  license,
arrangement,  or understanding,  or violate or result in a breach of any term of
the  certificate  of  incorporation  or by-laws of  Advaxis  (or the  comparable
charter documents,  if any, under applicable law), or (if the provisions of this
Agreement are  satisfied)  violate,  result in a breach of, or conflict with any
law, rule, regulation, order, judgment, or decree binding on Advaxis or to which
any of its businesses, properties, or assets are subject. Except as set forth in
Section K of the  Advaxis  Disclosure  Letter,  neither  Advaxis  nor any of its
officers,  directors,  employees, or agents has employed any broker or finder or
incurred any liability for any fee, commission, or other compensation payable by
any person on account of alleged  employment  as a broker or finder,  or alleged
performance of services as a broker or finder, in connection with or as a result
of  this  Agreement  or  the  other  transactions  contemplated  hereby  and  in
connection herewith.


                                       23


      (l) Insurance.  All policies of fire and other insurance  against casualty
and other losses and public liability insurance carried by Advaxis are described
in Section L of the Advaxis  Disclosure  Letter (including the risks covered and
limits of such  policies) and are in full force and effect.  A full and complete
copy of each such insurance  policy has been provided to GXPT, and such policies
are summarized in Section L of the Advaxis  Disclosure  Letter.  All premiums in
respect of such policies for which premium  notices have been received have been
paid in full as the same become due and payable. Advaxis have not failed to give
any notice or present  any claim  under any  insurance  policy in due and timely
fashion.  There are no actual  claims or claims  threatened  in writing  against
Advaxis  which  could come  within the scope of such  coverage  nor are any such
policies  currently  threatened  with  cancellation.  There  are no  outstanding
requirements or  recommendations  by any insurance  company that issued a policy
with respect to any of the respective assets,  the businesses,  or operations of
Advaxis or by any Board of Fire  Underwriters or other body  exercising  similar
functions or by any governmental authority requiring or recommending any repairs
or other work to be done on, or with respect to, any of the respective assets of
Advaxis or requiring or recommending any equipment or facilities to be installed
on any premises from which the respective  businesses of Advaxis is conducted or
in connection with any of the respective  assets thereof.  Advaxis does not have
any knowledge of any material proposed increase in applicable insurance rates or
of any  conditions  or  circumstances  applicable to the  respective  businesses
thereof that might result in such  increases.  No such policy is  terminable  by
virtue of the transactions contemplated by this Agreement.

      (m) Business  Conducted in No Other Name. All business of Advaxis has been
conducted  in its and for their  benefit  and there are no  parties  related  or
affiliated with Advaxis, either directly or indirectly,  which are competing for
the business of Advaxis.

      (n) Customers and Suppliers. There has been no termination or cancellation
of any relationship  between Advaxis and any material supplier,  or any customer
or group of customers which, individually or in the aggregate,  represented more
than five (5%) percent of the gross  revenues of Advaxis taken as a whole during
the year ended  December 31,  2003,  nor is there any reason to believe that any
such terminations or cancellations of such magnitudes are pending or threatened.

      (o) Completeness of Disclosure.  No  representation or warranty by Advaxis
in this  Agreement  contains,  or at the Closing  Date will  contain,  an untrue
statement of material  fact or omits or at the Closing Date will omit to state a
material fact required to be stated  therein or necessary to make the statements
made not misleading.

      (p)  Compliance  with  Law  and  Government  Regulations.  Advaxis  is  in
compliance in all material respects with, and is not in violation of, applicable
local or foreign statutes,  laws and regulations  (including without limitation,
any applicable building, zoning or other law, ordinance or regulation) affecting
its  properties or the operation of its business.  Advaxis is not subject to any
order, decree, judgment or other sanction of any court, administrative agency or
other tribunal.


                                       24


      SECTION 2.03  REPRESENTATIONS AND WARRANTIES OF THE ADVAXIS  SHAREHOLDERS.
The Advaxis  Shareholders,  severally  and not  jointly,  hereby  represent  and
warrant to, and agree with, GXPT as follows:

      (a) Representations and Warranties of Advaxis.  Those Advaxis Shareholders
who are also  employees  and members of the  management of Advaxis (and no other
Advaxis  Shareholder)   represent  and  warrant  that  the  representations  and
warranties  of Advaxis set forth in Section  2.02 hereof are true and correct in
all  material  respects.  Nothing  has  come to the  attention  of such  Advaxis
Shareholders  that  would lead such  Advaxis  Shareholders  to believe  that any
representation or warranty of Advaxis set forth on Section 2.02 hereof is untrue
or incorrect in any material respect.

      (b)  Authority.  Each  of  the  Advaxis  Shareholders  has  approved  this
Agreement  and, if an entity,  has duly  authorized  the  execution and delivery
hereof.  Each  Advaxis  Shareholder  has full power and  authority  to  execute,
deliver, and perform this Agreement and the transactions contemplated hereby and
in  connection  herewith.  Each Advaxis  Shareholder  who is an  individual  has
reached the age of majority under applicable law.

      (c)  Ownership  of  Shares.   Each  of  the  Advaxis   Shareholders   owns
beneficially the shares of Advaxis Capital Stock set forth opposite such Advaxis
Shareholder's  name on Schedule A. Each Advaxis  Shareholder  has full power and
authority to transfer  his, her or its shares of Advaxis  Capital  Stock to GXPT
under, pursuant to, and in accordance with, this Agreement, and to the knowledge
of such  Advaxis  Shareholder,  such  shares  are free and  clear of any  liens,
charges,  mortgages,  pledges or encumbrances and such shares are not subject to
any  claims as to the  ownership  thereof,  or any  rights,  powers or  interest
therein,  by any third  party and are not subject to any  preemptive  or similar
rights of stockholders.

      (d) Investment Representations and Covenants.

            (i)  Each   Advaxis   Shareholder   represents   that  such  Advaxis
Shareholder  is acquiring the Purchase  Shares to be issued  pursuant to Section
1.02(a) hereof for his, her or its own account and for  investment  only and not
with a view to  distribution or resale thereof within the meaning of such phrase
as defined under the Securities Act. The Advaxis  Shareholders shall not dispose
of any part or all of such Purchase Shares in violation of the provisions of the
Securities Act and the rules and  regulations  promulgated  under the Securities
Act by the SEC and all  applicable  provisions  of  state  securities  laws  and
regulations.

            (ii) Each Advaxis  Shareholder  acknowledges that the certificate or
certificates  representing such Advaxis Shareholder's Purchase Shares shall bear
a legend in substantially the form set forth in Section 1.02(c) hereof.


                                       25


            (iii) Each Advaxis Shareholder  acknowledges being informed that the
Purchase  Shares  to be issued  pursuant  to  Section  1.02(a)  hereof  shall be
unregistered,  shall be  "restricted  securities" as defined in paragraph (a) of
Rule 144 under the Securities Act, and must be held indefinitely unless (a) they
are  subsequently  registered under the Securities Act, or (b) an exemption from
such registration is available.

            (iv)  Each  Advaxis  Shareholder   acknowledges  that  such  Advaxis
Shareholder  has been  afforded  access to all material  information  which such
Advaxis  Shareholder  has  requested  relevant  to  such  Advaxis  Shareholder's
decision  to  acquire  the  Purchase  Shares  and to  ask  questions  of  GXPT's
management and that, except as set forth herein,  neither GXPT nor anyone acting
on behalf of GXPT has made any  representations  or  warranties  to such Advaxis
Shareholder   which  have  induced,   persuaded,   or  stimulated  such  Advaxis
Shareholder  to acquire such Purchase  Shares.  Each Advaxis  Shareholder  shall
deliver to GXPT a completed investor  representation letter in the form attached
hereto as Exhibit X.

            (v)  Either  alone,  or  together  with his,  her or its  investment
advisor(s),  each  Advaxis  Shareholder  has the  knowledge  and  experience  in
financial and business  matters to be capable of evaluating the merits and risks
of  the  prospective  investment  in  the  Purchase  Shares,  and  each  Advaxis
Shareholder  is and will be able to bear the economic risk of the  investment in
such Purchase Shares.

                                   ARTICLE III

                                    COVENANTS

      SECTION 3.01 COVENANTS OF GXPT. GXPT covenants and agrees that,  after the
date  hereof  and  through  the  earlier  of  the  Closing  or the  date  of the
termination of this Agreement pursuant to Article IV hereof (the earlier of such
times,  the "Release Time"),  unless Advaxis will otherwise  approve in writing,
which approval will not be unreasonably withheld:

            (a) (i) Until the Release Time, no dividend or  liquidating or other
distribution or stock split shall be authorized,  declared, paid, or effected by
GXPT in respect of the outstanding  shares of GXPT Common Stock other than the 1
for 200 reverse stock split referenced in 3.01(l) below.

                  (ii) Until the Release Time, no share of capital stock of GXPT
or warrant for any such share, right to subscribe to or purchase any such share,
or security  convertible  into, or  exchangeable  or  exercisable  for, any such
share, shall be issued or sold by GXPT other than the Offering.

            (b)  Until  the  Release  Time,   GXPT  will  afford  the  officers,
directors,  employees,  counsel, agents,  investment bankers,  accountants,  and
other  representatives  of Advaxis  and the Advaxis  Shareholders  free and full
access to the plants,  properties,  books, and records of GXPT. GXPT will permit
them to make extracts  from and copies of such books and records,  and will from
time to time furnish Advaxis and the Advaxis  Shareholders  with such additional
financial  and  operating  data  and  other  information  as  to  the  financial
condition, results of operations,  businesses,  properties, assets, liabilities,
or future prospects of GXPT as Advaxis or the Advaxis  Shareholders from time to
time may  request.  Until the  Release  Time,  GXPT will  cause the  independent
certified  public  accountants  of  GXPT  to  make  available  to  Advaxis,  its
independent certified public accountants, and the Advaxis Shareholders, the work
papers  relating to the audits of GXPT  referred  to in Section  2.01(c) of this
Agreement.


                                       26


            (c) Until the Release Time, GXPT will conduct its affairs so that on
the Closing Date no  representation  or warranty of GXPT will be inaccurate,  no
covenant  or  agreement  of GXPT  will be  breached,  and no  condition  in this
Agreement will remain unfulfilled by reason of the actions or omissions of GXPT.
Except as otherwise consented to by Advaxis in writing,  until the Release Time,
GXPT will conduct its affairs in all respects only in the ordinary course.

            (d) Until the Release Time, GXPT will immediately advise Advaxis and
the Advaxis  Shareholders  in a detailed  written notice of any material fact or
occurrence or any pending or threatened  material occurrence of which it obtains
knowledge  and which (if existing and known at the date of the execution of this
Agreement)  would have been required to be set forth or disclosed in or pursuant
to this Agreement or in the GXPT Disclosure Letter, which (if existing and known
at any time prior to or at the Closing) would make the  performance by any party
of a covenant  contained in this Agreement  impossible or make such  performance
materially  more difficult  than in the absence of such fact or  occurrence,  or
which (if existing and known at the time of the Closing) would cause a condition
to any party's obligations under this Agreement not to be fully satisfied.

            (e) GXPT shall insure that all confidential  information  which GXPT
or  any of its  officers,  directors,  employees,  counsel,  agents,  investment
bankers,  or  accountants  may now  possess  or may  hereafter  create or obtain
relating  to  the  financial  condition,  results  of  operations,   businesses,
properties,  assets,  liabilities, or future prospects of Advaxis, any affiliate
of Advaxis,  or any customer or supplier of Advaxis or any such affiliate  shall
not be  published,  disclosed,  or made  accessible  by any of them to any other
person or entity  without  the  prior  written  consent  of  Advaxis;  provided,
however,  that the  restrictions  of this  sentence  shall  not apply (i) as may
otherwise  be  required  by law,  (ii) as may be  necessary  or  appropriate  in
connection with the  enforcement of this  Agreement,  or (iii) to the extent the
information  shall have otherwise  become publicly  available.  GXPT shall,  and
shall  cause all other such  persons  and  entities  to,  deliver to Advaxis all
tangible  evidence of the  confidential  information  relating  to Advaxis,  any
affiliate of Advaxis, or (insofar as such confidential  information was provided
by, or on behalf of, Advaxis,  or any such affiliate of Advaxis) any customer or
supplier of any of them or any such affiliate to which the  restrictions  of the
foregoing  sentence apply  immediately  after the  termination of this Agreement
pursuant to Article IV or V hereof.

            (f) Before GXPT releases any  information  concerning this Agreement
or any of the other transactions  contemplated  hereby or in connection herewith
which is intended for or may result in public dissemination  thereof, GXPT shall
cooperate  with Advaxis,  shall furnish drafts of all documents or proposed oral
statements  to Advaxis for comment,  and shall not release any such  information
without the written consent of Advaxis.  Nothing  contained herein shall prevent
GXPT from releasing any information if required to do so by law.


                                       27


            (g) GXPT shall not make any agreement or reach any understanding not
approved  in writing  by  Advaxis as a  condition  for  obtaining  any  consent,
authorization, approval, order, license, certificate, or permit required for the
consummation of the transactions contemplated by this Agreement.

            (h) GXPT  shall  promptly  prepare  all  required  by law or, in the
reasonable  opinion of the parties hereto,  appropriate  public  disclosures and
regulatory filings, if any are legally required,  relating to this Agreement and
the  transactions  contemplated  hereby and in connection  herewith.  GXPT shall
furnish or cause to be furnished,  for inclusion in such public  disclosures and
regulatory filings,  such information about GXPT, and GXPT's security holders as
may be required or as may be reasonably requested by Advaxis, and shall continue
to furnish or cause to be  furnished  such  information  as is necessary to keep
such information correct and complete in all material respects until the Release
Time. GXPT represents and warrants that the information that it has furnished to
date,  taken as a whole,  does  not now,  and will not at any time  prior to the
Release Time, (i) contain an untrue statement of a material fact or (ii) omit to
state a material  fact  required to be stated  therein or  necessary to make the
statements therein not false or misleading.  GXPT shall take any action required
to be taken by it under  state  "blue-sky,"  securities,  or  take-over  laws in
connection  with the issuance of GXPT Common Stock pursuant to the  transactions
contemplated hereby and in connection herewith.  The filings made by GXPT within
the past five years with the SEC were, if filed under the Exchange Act, prepared
in accordance  with the then existing  requirements  of the Exchange Act and the
rules  and  regulations  thereunder  and,  if filed  under the  Securities  Act,
prepared in accordance with the then existing requirements of the Securities Act
and the rules and regulations thereunder. Such filings when filed, and the press
releases and other public  statements  GXPT has made subsequent to the last such
filing when considered together with such filings, did not at the time of filing
or issuance of the press  releases or other public  statements,  as the case may
be, and (with respect to the press  releases and other public  statements,  when
considered  together  with  such  filings)  do not now  (i)  contain  an  untrue
statement of a material  fact or (ii) omit to state a material  fact required to
be stated  therein or  necessary  to make the  statements  therein  not false or
misleading.

            (i) If,  prior to the  Release  Time,  GXPT  Common  Stock  shall be
recapitalized  or reclassified  or GXPT shall effect any stock  dividend,  stock
split, or reverse stock split of GXPT Common Stock,  other than the contemplated
1 for 200  reverse  stock  split,  then the  shares of GXPT  Common  Stock to be
delivered under this Agreement or upon exercise,  conversion, or exchange of any
security to be delivered under this Agreement or assumed by GXPT as contemplated
by this Agreement shall be appropriately and equitably  adjusted to the kind and
amount of shares of stock and other securities and property to which the holders
of such  shares of GXPT  Common  Stock or such  other  security  would have been
entitled  to  receive  had such  stock or such other  security  been  issued and
outstanding  as of the record  date for  determining  stockholders  entitled  to
participate in such corporate event.

            (j) GXPT shall  timely  prepare and file any  declaration  or filing
necessary to comply with any transfer tax statutes  that require any such filing
before the Closing.

            (k) Until the Release Time,  GXPT shall not, and shall not authorize
or permit any officer,  director,  employee,  counsel, agent, investment banker,
accountant,  or  other  representative  of  GXPT,  directly  or  indirectly,  to
contemplate  or enter  into  any  transaction  the  effect  of  which  may be to
prohibit,  restrict, or delay the consummation of the transactions  contemplated
by this Agreement or impair the contemplated  benefits to GXPT's stockholders of
the transactions contemplated by this Agreement.


                                       28


            (l) Effective at the Closing,  GXPT shall cause its  certificate  of
incorporation  to be  amended  to (i) cause the  corporate  name  thereof  to be
changed to "Advaxis  Inc.",  (ii) have a 1 for 200 reverse stock split and (iii)
authorize  the number of shares of GXPT Common  Stock to be at least  50,000,000
shares.

            (m) Effective at the Closing,  each officer of GXPT shall tender his
or her respective  resignation and each member of the Board of Directors of GXPT
shall tender his or her respective  resignation therefrom and GXPT shall appoint
the following  individuals  as the sole directors of GXPT:  Roni Appel,  J. Todd
Derbin, Scott Flamm, Thomas McKearn and Steve Roth.

            (n) On or prior to the Closing  Date,  GXPT shall deliver to Advaxis
and the Advaxis  Shareholders the completed GXPT Disclosure Letter, which letter
shall be correct and complete in all material respects.

            (o) On or prior to the  Closing  Date,  the Board of  Directors  and
shareholders  of GXPT shall (i) adopt the 2004 Stock  Option Plan (the  "Plan"),
substantially  in the  form  attached  hereto  as  Exhibit  C and  (ii)  reserve
2,381,525  shares of GXPT  Common  Stock  for  issuance  under  the Plan,  to be
effective upon Closing.

            (p) On the Closing  Date,  752,600  new shares of GXPT Common  Stock
shall be  issued  and  delivered  in  certificated  form to, or to the order of,
Sunrise Securities Corp. and/or their respective designees.

            (q)  Prior  to  the  Closing  Date,   the  Board  of  Directors  and
shareholders  of GXPT shall have  authorized  and  approved  the  execution  and
delivery of this Agreement and all transactions  contemplated hereby,  including
without limitation the 1 for 200 reverse stock split.

      SECTION 3.02  COVENANTS  OF ADVAXIS.  Advaxis  covenants  and agrees that,
after the date hereof and through the Release Time,  unless GXPT will  otherwise
approve in writing, which approval will not be unreasonably withheld:

            (a)  Until  the  Release  Time,  no  amendment  will  be made in the
certificate  of  incorporation  or by-laws  (or,  in each case,  the  comparable
charter documents, if any, under applicable law) of Advaxis.

            (b) Until the  Release  Time,  no share of  Advaxis  Capital  Stock,
option or warrant for any such share, right to subscribe to or purchase any such
share, or security  convertible  into, or  exchangeable or exercisable  for, any
such  share,  shall be issued or sold by  Advaxis,  other than the  issuance  of
convertible promissory notes and the issuance of warrants related thereto (which
convertible  promissory  notes and warrants  shall be exchanged for Units on the
same terms as the Advaxis Notes),  or otherwise than as  contemplated  by, or in
connection with, this Agreement. Such subscribers or purchasers will be required
to comply with all of the securities  transaction exemption requirements imposed
on the Advaxis Shareholders under this Agreement.


                                       29


            (c) Until the Release  Time,  no dividend  or  liquidating  or other
distribution or stock split shall be authorized,  declared, paid, or effected by
Advaxis in respect of the outstanding shares of Advaxis Capital Stock other than
in-kind  dividends  payable to holders of Advaxis  Series A  Preferred  Stock of
Advaxis,  as more fully described in Section C of the Advaxis Disclosure Letter.
Until the Release Time,  no direct or indirect  redemption,  purchase,  or other
acquisition shall be made by Advaxis of shares of Advaxis Capital Stock.

            (d) Until the Release  Time,  except in the  ordinary  course of its
business,  Advaxis  shall not borrow  money,  guarantee  the borrowing of money,
engage in any  transaction,  or enter into any material  agreement other than in
connection with the transactions  contemplated  hereby or in connection herewith
or otherwise pursuant to any currently  outstanding  credit line of Advaxis,  or
with  respect  to  any  agreements  or  modifications  to  agreements  with  the
University of  Pennsylvania,  or with respect to the incurrence of  indebtedness
pursuant to the  issuance of  convertible  promissory  notes and the issuance of
warrants related thereto (which convertible  promissory notes and warrants shall
be exchanged for Units on the same terms as the Advaxis Notes).  For purposes of
this Agreement,  references to "material",  as well as correlative  terms (e.g.,
materially, materiality, etc.), shall be deemed to refer to amounts of US$50,000
or more or effects or consequences of US$50,000 or more.

            (e) Until the  Release  Time,  Advaxis  will  afford  the  officers,
directors,  employees,  counsel, agents,  investment bankers,  accountants,  and
other  representatives of GXPT and lenders,  investors,  and prospective lenders
and investors free and full access to the plants, properties, books, and records
of Advaxis,  will permit them to make extracts from and copies of such books and
records,  and will from time to time furnish GXPT with such additional financial
and operating data and other information as to the financial condition,  results
of operations,  businesses, properties, assets, liabilities, or future prospects
of  Advaxis  as GXPT from time to time may  request.  Until  the  Release  Time,
Advaxis will cause the independent  certified  public  accountants of Advaxis to
make available to GXPT and its independent certified public accountants the work
papers relating to the audits of Advaxis  referred to in Section 2.02(c) of this
Agreement.

            (f) Until the Release Time, Advaxis will conduct its affairs so that
at the Closing,  no  representation or warranty of Advaxis will be inaccurate in
any material respect, no covenant or agreement of Advaxis will be breached,  and
no condition in this Agreement will remain  unfulfilled by reason of the actions
or  omissions of Advaxis.  Except as otherwise  consented to by GXPT in writing,
until the  Release  Time,  Advaxis  will use its best  efforts to  preserve  the
business  operations of Advaxis  intact,  to keep  available the services of its
present  personnel,  to  preserve  in  full  force  and  effect  the  contracts,
agreements,  instruments,  leases, licenses, arrangements, and understandings of
Advaxis, and to preserve the good will of its suppliers,  customers,  and others
having business relations with any of them. Until the Release Time, Advaxis will
conduct its affairs in all respects only in the ordinary  course,  other than in
connection with the matters referenced herein.


                                       30


            (g) Until the Release Time, Advaxis will immediately advise GXPT and
the Advaxis  Shareholders  in a detailed  written notice of any material fact or
occurrence or any pending or threatened  material occurrence of which it obtains
knowledge  and which (if existing and known at the date of the execution of this
Agreement)  would have been required to be set forth or disclosed in or pursuant
to this Agreement or the Advaxis Disclosure Letter, which (if existing and known
at any time prior to or at the Closing) would make the  performance by any party
of a covenant  contained in this Agreement  impossible or make such  performance
materially  more difficult  than in the absence of such fact or  occurrence,  or
which (if existing and known at the time of the Closing) would cause a condition
to any party's obligations under this Agreement not to be fully satisfied.

            (h) Advaxis shall use its commercially  reasonable efforts to insure
that  all  confidential  information  which  Advaxis  or any  of its  respective
officers,   directors,   employees,  counsel,  agents,  investment  bankers,  or
accountants  may now possess or may hereafter  create or obtain  relating to the
financial  condition,  results of operations,  businesses,  properties,  assets,
liabilities, or future prospects of GXPT, any affiliate thereof, or any customer
or supplier thereof or of any such affiliate shall not be published,  disclosed,
or made  accessible  by any of them to any other person or entity at any time or
used by any of them  except  in the  ordinary  course  of  business  and for the
benefit of Advaxis;  provided,  however,  that the restrictions of this sentence
shall not apply (A) after this Agreement is terminated pursuant to Article IV or
V hereof or  otherwise,  (B) as may  otherwise be required by law, (C) as may be
necessary or appropriate in connection  with the  enforcement of this Agreement,
or (D) to the  extent  the  information  shall have  otherwise  become  publicly
available.

            (i)  Before  Advaxis   releases  any  information   concerning  this
Agreement or any of the  transactions  contemplated  by this Agreement  which is
intended  for, or may result in,  public  dissemination  thereof,  Advaxis shall
cooperate  with GXPT,  shall  furnish  drafts of all  documents or proposed oral
statements  to GXPT for  comment,  and shall not  release  any such  information
without the written  consent of GXPT,  which consent  shall not be  unreasonably
withheld.  Nothing  contained  herein shall prevent  Advaxis from  releasing any
information if required to do so by law or in connection with the Offering.

            (j) Advaxis shall not make any agreement or reach any  understanding
not  approved  in writing by GXPT as a  condition  for  obtaining  any  consent,
authorization, approval, order, license, certificate, or permit required for the
consummation of the transactions contemplated by this Agreement.

            (k) Advaxis shall furnish,  or cause to be furnished,  for inclusion
in the public  disclosures  or  regulatory  filings of GXPT or  otherwise or for
inclusion in GXPT's  filings under state  "blue-sky,"  securities,  or take-over
laws,  such  information  about  Advaxis or the  Advaxis  Shareholder  as may be
required  or as may be  reasonably  requested  by GXPT,  and shall  continue  to
furnish or cause to be furnished  such  information as is necessary to keep such
information correct and complete in all material respect until the Release Time.
Advaxis  represents and warrants that the  information  that it has furnished to
date,  taken as a whole,  does  not now,  and will not at any time  prior to the
Release Time, (i) contain an untrue statement of a material fact or (ii) omit to
state a material  fact  required to be stated  therein or  necessary to make the
statements therein not false or misleading.


                                       31


            (l) Advaxis shall timely prepare and file any  declaration or filing
necessary to comply with any transfer tax statutes  that require any such filing
before the Closing.

            (m) On or prior to the Closing  Date,  Advaxis shall deliver to GXPT
the  completed  Advaxis  Disclosure  Letter,  which  letter shall be correct and
complete in all material respects.

            (n)  Prior  to  the  Closing  Date,   the  Board  of  Directors  and
shareholders  of Advaxis  shall have  authorized  and approved the execution and
delivery of this Agreement and all transactions contemplated hereby.

      SECTION  3.03   COVENANTS  OF  THE  ADVAXIS   SHAREHOLDERS.   The  Advaxis
Shareholders covenant and agree, severally and not jointly, that, after the date
hereof and through  the Release  Time,  unless  GXPT will  otherwise  approve in
writing, which approval will not be unreasonably withheld, as follows:

            (a) Those Advaxis  Shareholders who are employees and members of the
management  of Advaxis  will use best  efforts to cause  Advaxis to perform each
covenant thereof set forth herein on a timely basis.

            (b) Until the earlier of the Release  Time,  no Advaxis  Shareholder
shall take any action the result of which shall be to cause  Advaxis to make any
amendment in the certificate of  incorporation or by-laws (or, in each case, the
comparable charter documents, if any, under applicable law) thereof.

            (c) Before any of the Advaxis Shareholders  releases any information
concerning  this  Agreement  or any of the  transactions  contemplated  by  this
Agreement which is intended for, or may result in, public dissemination thereof,
such Advaxis  Shareholder shall cooperate with GXPT, shall furnish drafts of all
documents or proposed oral statements to GXPT for comment, and shall not release
any such  information  without the written consent of GXPT,  which consent shall
not be unreasonably withheld. Nothing contained herein shall prevent the Advaxis
Shareholders  from  releasing any  information if required to do so by law or in
connection with the Offering.

            (d)  Each  Advaxis   Shareholder  shall  furnish,  or  cause  to  be
furnished,  for  inclusion  in the  public  disclosure  in  connection  with the
transactions  contemplated by this Agreement, or for inclusion in GXPT's filings
under state  "blue-sky,"  securities,  or take-over laws, such information about
the Advaxis  Shareholder  as may be required  under  applicable  law,  and shall
continue to furnish or cause to be furnished such information as is necessary to
keep such  information  correct and complete in all material  respect  until the
Release Time.  Each Advaxis  Shareholder  represents  and warrants,  solely with
respect to himself,  herself or itself, that the information in writing that he,
she or it has  furnished  to date  regarding  himself,  herself  or  itself  for
inclusion in any registration statement or other related public filings with the
SEC or in any of GXPT's filings under state  securities  laws, taken as a whole,
does not now, and will not at any time prior to the Release Time, (i) contain an
untrue  statement  of a  material  fact or (ii)  omit to state a  material  fact
required to be stated  therein or necessary to make the  statements  therein not
false or misleading.


                                       32


                                   ARTICLE IV

                     CONDITIONS; ABANDONMENT AND TERMINATION

      SECTION 4.01 RIGHT OF GXPT TO ABANDON.  GXPT's  Board of  Directors  shall
have the right to abandon or terminate  this  Agreement if any of the  following
conditions shall not be true or shall not have occurred,  as the case may be, as
of the specified date or dates:

            (a) All  representations  and  warranties of Advaxis and the Advaxis
Shareholders  contained in this  Agreement  shall be accurate  when made and, in
addition,   shall  be  accurate   as  of  the   Closing   Date  as  though  such
representations  and  warranties  were then made in exactly the same language by
Advaxis or the Advaxis Shareholders,  as applicable, and regardless of knowledge
or  lack  thereof  on the  part  of  Advaxis  or the  Advaxis  Shareholders  (as
applicable) or changes beyond its control;  as of the Closing Date,  Advaxis and
the Advaxis  Shareholders  shall have  performed and complied with all covenants
and  agreements  and  satisfied  all  conditions  required to be  performed  and
complied  with  by it at or  before  the  Closing  Date,  respectively,  by this
Agreement;  and GXPT shall have  received a  certificate  executed  by the chief
executive  officer  and the chief  financial  officer of Advaxis and the Advaxis
Shareholders, dated the Closing Date, to that effect.

            (b) GXPT  shall  have  received  at the  Closing  Date  certificates
executed  by the chief  executive  officer  and the chief  financial  officer of
Advaxis to the effect that they have carefully examined the  representations and
warranties  made by Advaxis herein,  as well as the documents  delivered to GXPT
pursuant  hereto,  and,  to the  best  of  their  knowledge,  (i)  neither  such
representations and warranties,  nor any such document so delivered (A) contains
an untrue  statement  of a material  fact or (B) omits to state a material  fact
required to be stated  therein or necessary to make the  statements  therein not
false or  misleading,  and (ii) since the date hereof,  no event with respect to
Advaxis or the Advaxis  security  holder has occurred which should have been set
forth in an amendment hereto which has not been set forth in such an amendment.

            (c) Advaxis and the Advaxis Shareholders,  as applicable, shall have
delivered  to  GXPT  at or  prior  to the  Closing  Date  such  other  documents
(including  certificates of officers of Advaxis) as GXPT may reasonably  request
in order to enable GXPT to determine whether the conditions to their obligations
under this  Agreement have been met and otherwise to carry out the provisions of
this Agreement.

            (d) All actions, proceedings, instruments, and documents required by
Advaxis and the Advaxis  Shareholders  to carry out this Agreement or incidental
thereto and all other related  legal matters shall be subject to the  reasonable
approval of counsel to GXPT, and Advaxis and the Advaxis Shareholders shall have
furnished  such  counsel  such  documents  as such  counsel may have  reasonably
requested for the purpose of enabling them to pass upon such matters.


                                       33


            (e) At the Closing,  there shall not be pending any legal proceeding
relating to, or seeking to prohibit or otherwise  challenge the consummation of,
the  transactions  contemplated  by this  Agreement,  or to  obtain  substantial
damages with respect thereto.

            (f) There shall not have been any action  taken,  or any law,  rule,
regulation, order, judgment, or decree proposed, promulgated,  enacted, entered,
enforced,  or  deemed  applicable  to  the  transactions  contemplated  by  this
Agreement by any federal,  state,  local, or other governmental  authority or by
any court or other  tribunal,  including the entry of a preliminary or permanent
injunction,  which, in the reasonable judgment of GXPT, (i) makes this Agreement
or any of the transactions  contemplated by this Agreement illegal, results in a
delay  in the  ability  of  Advaxis  or  GXPT  to  consummate  the  transactions
contemplated  by this  Agreement,  (iii)  requires the  divestiture by GXPT of a
material  portion of the  business of either GXPT or of  Advaxis,  (iv)  imposes
material  limitations on the ability of GXPT effectively to exercise full rights
of ownership of shares of Advaxis including the right to vote such shares on all
matters  properly  presented  to the  Advaxis  Shareholders,  or  (v)  otherwise
prohibits,  restricts or delays consummation of the transactions contemplated by
this Agreement or impairs the contemplated benefits to GXPT of this Agreement or
any of the other transactions contemplated by this Agreement.

            (g) The parties to this Agreement shall have obtained at or prior to
the Closing Date all unconditional written approval to this Agreement and to the
execution,  delivery,  and  performance  of  this  Agreement  by each of them of
relevant  governmental  authorities,  if any, having  jurisdiction  over GXPT or
Advaxis or the subject matter of this Agreement.

            (h) The parties to this Agreement shall have obtained at or prior to
the Closing Date all consents  required for the consummation of the transactions
contemplated  by this Agreement from any unrelated  third party to any contract,
agreement,  instrument,  lease, license,  arrangement, or understanding to which
any of them is a  party,  or to  which  any of them or any of  their  respective
businesses, properties, or assets are subject.

            (i) There  shall not have been any  material  adverse  change in the
condition (financial or otherwise),  operations,  business, assets, liabilities,
earnings or prospects of Advaxis since the date hereof.

            (j) GXPT shall conduct a due diligence review of Advaxis, including,
without limitation,  a review of the Advaxis Disclosure Letter and the documents
referenced  therein delivered prior to the Closing Date, and shall be reasonably
satisfied with the result of such review.

      SECTION 4.02 RIGHT OF ADVAXIS AND THE ADVAXIS  SHAREHOLDERS TO ABANDON. By
the  election of the Advaxis  Shareholders,  or  otherwise,  Advaxis's  Board of
Directors  shall have the right to abandon or terminate this Agreement if any of
the following  conditions  shall not be true or shall not have occurred,  as the
case may be, as of the specified date or dates:

            (a) All  representations  and  warranties of GXPT  contained in this
Agreement shall be accurate when made and, in addition,  shall be accurate as of
the Closing Date as though such representations and warranties were then made in
exactly the same language by GXPT and regardless of knowledge or lack thereof on
the part of GXPT or changes  beyond its control;  as of the Closing  Date,  GXPT
shall  have  performed  and  complied  with all  covenants  and  agreements  and
satisfied all  conditions  required to be performed and complied with by them at
or before the Closing Date by this  Agreement;  and Advaxis  shall have received
certificates  executed by the chief  executive  officer and the chief  financial
officer of GXPT, dated the Closing Date, to that effect.


                                       34


            (b) Advaxis and the Advaxis  Shareholders shall have received at the
Closing Date certificates  executed by the chief executive officer and the chief
financial  officer  of  GXPT as of such  date,  to the  effect  that  they  have
carefully examined the  representations and warranties made by GXPT made herein,
as well as the documents  delivered to Advaxis pursuant hereto, and, to the best
of their knowledge,  (i) neither such  representations  and warranties,  nor any
such document so delivered  (A) contains an untrue  statement of a material fact
or (B) omits to state a material fact required to be stated therein or necessary
to make the  statements  therein  not false or  misleading,  (ii) since the date
hereof,  no event with respect to GXPT has  occurred  which should have been set
forth in an amendment  hereto which has not been set forth in such an amendment,
(iii) any  contract,  agreement,  instrument,  lease or license  regarding  GXPT
required to by filed as an exhibit to any regulatory  filing required by the SEC
has been  filed as an  exhibit  to or has been  incorporated  as an  exhibit  by
reference  into such  regulatory  filing and (iv) to the effect of clause (k) of
this Section 4.02.

            (c)  GXPT  shall  have   delivered   to  Advaxis   and  the  Advaxis
Shareholders  at or  prior  to  the  Closing  such  other  documents  (including
certificates  of officers of GXPT) as Advaxis and the Advaxis  Shareholders  may
reasonably  request in order to enable Advaxis and the Advaxis  Shareholders  to
determine whether the conditions to GXPT's obligations under this Agreement have
been met and otherwise to carry out the provisions of this Agreement.

            (d) All actions, proceedings, instruments, and documents required by
GXPT to carry out this  Agreement or  incidental  thereto and all other  related
legal matters shall be subject to the reasonable  approval of counsel to Advaxis
and the Advaxis  Shareholders,  and GXPT shall have  furnished such counsel such
documents  as such  counsel  may have  reasonably  requested  for the purpose of
enabling them to pass upon such matters.

            (e) At the  Closing  Date,  there  shall  not be  pending  any legal
proceeding  relating  to, or seeking to  prohibit  or  otherwise  challenge  the
consummation of, the transactions  contemplated by this Agreement,  or to obtain
substantial damages with respect thereto.

            (f) There shall not have been any action  taken,  or any law,  rule,
regulation, order, judgment, or decree proposed, promulgated,  enacted, entered,
enforced,  or  deemed  applicable  to  the  transactions  contemplated  by  this
Agreement by any federal,  state,  local, or other governmental  authority or by
any court or other  tribunal,  including the entry of a preliminary or permanent
injunction,  which,  in the  reasonable  judgment  of  Advaxis  or  the  Advaxis
Shareholders,  (i) makes this Agreement or any of the transactions  contemplated
by this Agreement illegal,  or (ii) results in a delay in the ability of GXPT or
Advaxis to consummate any of the transactions  contemplated by this Agreement or
(iii)  otherwise  prohibits,  restricts  or  delays  consummation  of the  other
transactions contemplated by this Agreement or impairs the contemplated benefits
to the  Advaxis  Shareholders  of  this  Agreement  or  any of the  transactions
contemplated by this Agreement.


                                       35


            (g) The parties to this Agreement shall have obtained at or prior to
the Closing Date all unconditional written approval to this Agreement and to the
execution,  delivery,  and  performance  of  this  Agreement  by each of them of
relevant  governmental  authorities,  if any, having  jurisdiction  over GXPT or
Advaxis or the subject matter of this Agreement.

            (h) At or  prior to the  Closing  Date,  GXPT  shall  have  made all
filings,  and  taken  all  actions,  necessary  to  comply  with  all  reporting
requirements   under  federal  and  state  securities  laws  (including  without
limitation,  applicable  "blue-sky"  laws with  regard to the  issuance  of GXPT
Common Stock as contemplated by this Agreement)  other than the filing of Form D
up to 15 days  following  the Closing.  Without  limiting the  generality of the
foregoing,  any  prescribed  periods within which a "blue sky" or securities law
administrator  may disallow  GXPT's notice of reliance on an exemption from such
state's requirements, shall have elapsed at or prior to the Closing Date.

            (i) The parties to this Agreement shall have obtained at or prior to
the Closing Date all consents  required for the consummation of the transactions
contemplated  by this Agreement from any unrelated  third party to any contract,
agreement,  instrument,  lease, license,  arrangement, or understanding to which
any of them is a  party,  or to  which  any of them or any of  their  respective
businesses, properties, or assets are subject.

            (j) Advaxis shall conduct a due diligence review of GXPT, including,
without  limitation,  a review of the GXPT  Disclosure  Letter and the documents
referenced  therein  delivered  prior to the  Closing  Date,  and same  shall be
satisfactory in the reasonable opinion of Advaxis.

            (k)  At  the  Closing  Date,  GXPT  shall  have  no  assets  and  no
liabilites,  determined in  accordance  with GAAP in effect in the United States
applied on a basis  consistent  with that of the  financial  statements  of GXPT
hereinabove referenced.

            (l) At or prior to the  Closing  Date,  a minimum  investment  of at
least $1,500,000  shall be placed in escrow with Continental  Transfer and Trust
Company, the escrow agent, in connection with the Offering.

            (m) At or prior to the Closing Date,  the officers,  directors,  and
holders of 5% or more of the outstanding GXPT Common Stock  immediately prior to
such date shall have  executed and  delivered  to Advaxis an agreement  mutually
acceptable  in form and  substance to each of such person or entity,  on the one
hand, and Advaxis, on the other hand, providing for restrictions on resale and a
"leak-out" of securities for a 90 day period following the Closing Date.

      SECTION  4.03  OPTIONAL  ABANDONMENT.  In  addition to the  provisions  of
Section  4.01 and Section  4.02 above,  the  transactions  contemplated  by this
Agreement   may  be   abandoned   or   terminated   at  or  before  the  Closing
notwithstanding  adoption and approval of this  Agreement  and the  transactions
contemplated hereby by the stockholders of the parties hereto:

            (a) by  mutual  agreement  of the  Boards of  Directors  of GXPT and
Advaxis;


                                       36


            (b) at the option of GXPT's Board of Directors, if facts exist which
render  impossible  compliance  with one or more of the  conditions set forth in
Section 4.01 and such are not waived by GXPT;

            (c) at the option of Advaxis's Board of Directors or by the election
of the Advaxis  Shareholders if facts exist which render  impossible  compliance
with one or more of the  conditions  set forth in Section  4.02 and such are not
waived by Advaxis; and

            (d) at the option of Advaxis's  Board of Directors  and GXPT's Board
of  Directors,  if the  Closing  Date shall not have  occurred  on or before the
Initial Closing Date;  provided,  that if Advaxis pays GXPT $15,000 (such amount
is  non-refundable)  prior to the Initial  Closing  Date,  then the Closing Date
shall be extended for an additional forty-five (45) day period.

      SECTION 4.04 EFFECT OF ABANDONMENT.  If the  transactions  contemplated by
this  Agreement  are abandoned or terminated as provided for in this Article IV,
except for Sections 3.01(e),  3.02(h), 4.01, 4.02 and 4.03, this Agreement shall
forthwith become wholly void and of no further force or effect without liability
on the part of either  party to this  Agreement  or on the part of any  officer,
director,  controlling person (if any), employee, counsel, agent, or stockholder
thereof; provided, however, that nothing in this Section 4.04 shall release GXPT
or Advaxis or any  officer,  director,  controlling  person (if any),  employee,
counsel,  agent, or stockholder  thereof from liability for a willful failure to
carry out its respective obligations under this Agreement.

                                    ARTICLE V

                                  MISCELLANEOUS

      SECTION 5.01 EXPENSES.  Whether or not the  transactions  contemplated  in
this Agreement are  consummated,  all costs and expenses  incurred in connection
with this Agreement and the transactions  contemplated  hereby,  will be paid by
the party incurring such expense or as otherwise agreed to herein.

      SECTION  5.02 BROKERS AND  FINDERS.  Except as set forth on Schedule  5.2,
each of the parties  hereto  represents,  as to itself,  that no agent,  broker,
investment  banker or firm or person is or will be entitled  to any  broker's or
finder's fee or any other  commission or similar fee in  connection  with any of
the transactions contemplated by this Agreement,  except as may be otherwise set
forth herein or by separate document.

      SECTION 5.03 NECESSARY ACTIONS. Subject to the terms and conditions herein
provided,  each of the parties  hereto agrees to use all  reasonable  efforts to
take,  or cause to be taken,  all  action  and to do,  or cause to be done,  all
things  necessary,  proper or advisable under applicable laws and regulations to
consummate and make effective the  transactions  contemplated by this Agreement.
In the event at any time after the Closing,  any further  action is necessary or
desirable  to carry out the  purposes of this  Agreement,  the proper  executive
officers  and/or  directors  of GXPT or  Advaxis,  as the  case  may be,  or the
relevant  Advaxis  Shareholders  or  Advaxis  Shareholders  will  take  all such
necessary action.


                                       38


      SECTION 5.04 EXTENSION OF TIME;  WAIVERS. At any time prior to the Closing
Date:

      (a)  GXPT  may (i)  extend  the  time  for the  performance  of any of the
obligations or other acts of Advaxis or any Advaxis Shareholders, (ii) waive any
inaccuracies  in the  representations  and  warranties of Advaxis or any Advaxis
Shareholders  or, or  contained  herein or in any  document  delivered  pursuant
hereto by Advaxis or any Advaxis  Shareholders,  and (iii) waive compliance with
any of the agreements or conditions  contained herein to be performed by Advaxis
or any  Advaxis  Shareholders.  Any  agreement  on the  part of GXPT to any such
extension  or  waiver  will be  valid  only if set  forth in an  instrument,  in
writing, signed on behalf of GXPT.

      (b)  Advaxis  and the  Advaxis  Shareholders  (by  action  of the  Advaxis
Shareholders),  may  (i)  extend  the  time  for the  performance  of any of the
obligations  or  other  acts  of  GXPT,  (ii)  waive  any  inaccuracies  in  the
representations  and  warranties  of GXPT  contained  herein or in any  document
delivered  pursuant  hereto by GXPT and (iii) waive  compliance  with any of the
agreements or conditions contained herein to be performed by GXPT. Any agreement
on the part of Advaxis and to any such extension or waiver will be valid only if
set forth in an instrument, in writing, signed on behalf of Advaxis.

      SECTION  5.05  NOTICES.  Any notice to any party  hereto  pursuant to this
Agreement  will be in writing and given by  Certified or  Registered  Mail or by
facsimile, addressed as follows:

      If to Advaxis:           Advaxis, Inc.
                               212 Carnegie Center, Suite 206
                               Princeton, New Jersey 08540
                               Attention: J. Todd Derbin
                               Fax: (801) 459-3596

      If to the Advaxis
      Shareholders:            At the addresses set forth on the signature page.

      With a copy to:          Reitler Brown & Rosenblatt LLC
                               800 Third Avenue, 21st Floor
                               New York, New York 10022
                               Attention: Edward G. Reitler, Esq.
                               Fax: (212) 371-5500

      If to GXPT:              Great Expectations and Associates, Inc.
                               4105 East Florida Avenue, Suite 100
                               Denver, Colorado 80222
                               (303) 756-5703

      With a copy to:          Francona, Joiner, Goodman
                               4750 Table Mesa Drive
                               Boulder, Colorado 80305
                               Attention: Gary Joiner, Esq.
                               Fax: 303-494-6309


                                       39


      Additional notices are to be given as to each party, at such other address
as should be  designated  in writing  complying as to delivery with the terms of
this Section 5.05. All such notices will be effective when received.

      SECTION 5.06 PARTIES IN INTEREST. This Agreement will inure to the benefit
of and be binding  upon the parties  hereto and the  respective  successors  and
assigns.  Nothing in this  Agreement  is  intended  to confer,  expressly  or by
implication,  upon any other person any rights or remedies under or by reason of
this Agreement.

      SECTION 5.07  COUNTERPART.  This  Agreement may be executed in one or more
counterparts,  each of which will be deemed an original  and all  together  will
constitute one document. The delivery by facsimile of an executed counterpart of
this Agreement will be deemed to be an original and will have the full force and
effect of an original executed copy.

      SECTION 5.08 SEVERABILITY. The provisions of this Agreement will be deemed
severable and the invalidity or  unenforceability  of any provision  hereof will
not affect the validity or enforceability of any of the other provisions hereof.
If any provisions of this Agreement, or the application thereof to any person or
any  circumstance,  is illegal,  invalid or  unenforceable,  (a) a suitable  and
equitable  provision will be substituted  therefor in order to carry out, so far
as may be valid and  enforceable,  the  intent and  purpose  of such  invalid or
unenforceable  provision,  and  (b) the  remainder  of  this  Agreement  and the
application  of such  provision to other  persons or  circumstances  will not be
affected by such  invalidity or  unenforceability,  nor will such  invalidity or
unenforceability affect the validity or enforceability of such provision, or the
application thereof, in any other jurisdiction.

      SECTION  5.09  HEADINGS.  The Article and Section  headings  are  provided
herein for  convenience  of reference  only and do not constitute a part of this
Agreement  and  will not be  deemed  to limit  or  otherwise  affect  any of the
provisions hereof.

      SECTION 5.10  GOVERNING  LAW. This  Agreement will be deemed to be made in
and in all  respects  will be  interpreted,  construed  and  governed  by and in
accordance with the law of the State of COLORADO, without regard to the conflict
of law principles thereof.

      SECTION  5.11  SURVIVAL  OF  REPRESENTATIONS  AND  WARRANTIES.  All terms,
conditions, representations and warranties set forth in this Agreement or in any
instrument,  certificate,  opinion,  or other writing  providing for in it, will
survive the Closing  and the  delivery of the shares of GXPT Common  Stock to be
issued  hereunder  at the  Closing  for a period  of two  years  after  Closing,
regardless  of any  investigation  made by or on  behalf  of any of the  parties
hereto.


                                       40


      SECTION 5.12  ASSIGNABILITY.  This  Agreement  will not be  assignable  by
operation of law or otherwise and any attempted  assignment of this Agreement in
violation of this subsection will be void ab initio.

      SECTION 5.13 AMENDMENT. This Agreement may be amended with the approval of
a majority of the Advaxis  Shareholders  and the boards of  directors of each of
GXPT and Advaxis at any time.  This  Agreement  may not be amended  except by an
instrument, in writing, signed on behalf of each of the parties hereto.

      SECTION 5.14. AGREEMENT TO INDEMNIFY.  (a) To the extent permitted by law,
Advaxis  agrees  to  indemnify  and  hold  The  Trustees  of the  University  of
Pennsylvania harmless from and against all losses, claims, damages,  liabilities
and obligations of any kind and description ("LOSSES"), including any reasonable
attorney fees  incurred by The Trustees of the  University  of  Pennsylvania  in
investigating, defending or settling such Losses arising out of the Offering and
matters  related  thereto  other  than:  (i)  Losses  arising  out of the  gross
negligence,  willful  misconduct  or  misrepresentations  of The Trustees of the
University of  Pennsylvania or (ii) Losses arising out of a decline in the value
of the  GXPT  Common  Stock  issuable  to The  Trustees  of  the  University  of
Pennsylvania.  Notwithstanding  the  foregoing,  Advaxis agrees to indemnify and
hold The Trustees of the  University of  Pennsylvania  harmless from and against
any third party  claims or suits  against  The  Trustees  of the  University  of
Pennsylvania in connection with a decline in value of the GXPT Common Stock held
by such third parties.

      (b) To the extent  permitted by law,  Advaxis agrees to indemnify and hold
the  officers,  directors and  principal  shareholder  of GXPT harmless from and
against  any and all Losses  incurred  by GXPT in  investigating,  defending  or
settling  such Losses  arising out of the Offering and matters  related  thereto
other than Losses  arising out of the gross  negligence,  willful  misconduct or
misrepresentations of GXPT's officers, directors or principal shareholder.

                     [REMAINDER OF PAGE INTENTIONALLY BLANK]


                                       41


         IN WITNESS WHEREOF, the parties hereto have executed and delivered this
Agreement in a manner legally binding upon them as of the date first above
written.

                                         GREAT EXPECTATIONS AND ASSOCIATES, INC.


                                         BY /s/ Fred Mahlke
                                           -------------------------------------
                                           NAME:   Fred Mahlke
                                           TITLE:  President

ATTEST:

/s/ Daniel A. Unrein
- ------------------------------
NAME: Daniel A. Unrein
TITLE: Secretary

                                         ADVAXIS, INC.


                                         BY /s/ J. Todd Derbin
                                           -------------------------------------
                                           NAME:  J. TODD DERBIN
                                           TITLE: CHIEF EXECUTIVE OFFICER

ATTEST:

/s/ Roni Appel
- ------------------------------
NAME:  Roni Appel
TITLE: CFO

                                         ADVAXIS SHAREHOLDERS:

                                         TECHVECTORS, LLC


                                         BY: /s/ Roni Appel
                                            ------------------------------------
                                            NAME:  Roni Appel
                                            TITLE:
                                            ADDRESS: c/o Roni Appel
                                                     22 Ruth Lane
                                                     Demarest, NJ 07627


                                       42


                                         THE TRUSTEES OF THE
                                         UNIVERSITY OF PENNSYLVANIA


                                         BY: /s/ Louis Berneman
                                            ------------------------------------
                                            NAME:    Louis Berneman
                                            TITLE:   Managing Director
                                            ADDRESS: University Of Pennsylvania
                                                     Center for Technology
                                                     Transfer
                                                     3160 Chestnut Street
                                                     Suite 200
                                                     Philadelphia, PA 19104

                                         CRESTWOOD, LLC


                                         BY: /s/ Ron Nizan
                                            ------------------------------------
                                            NAME:  Ron Nizan
                                            TITLE: Manager
                                            ADDRESS: 109 Boulevard Drive
                                                     Danbury, CT 06810

                                         FLAMM FAMILY PARTNERS, LP


                                         BY: /s/ Scott Flamm
                                            ------------------------------------
                                            NAME:  Scott Flamm
                                            TITLE: President
                                            ADDRESS: c/o Scott Flamm
                                                     70 West Road
                                                     Short Hills, NJ  07078

                                         TRINITA LLC


                                         BY: /s/  Morton Kielland
                                            ------------------------------------
                                            NAME:    Morton Kielland
                                            TITLE:   President
                                            ADDRESS: c/o Morten Kielland,
                                                     22 Painters Lane,
                                                     Chesterbrook, PA  19087


                                       43

                                         /s/ Yvonne Paterson
                                         ---------------------------------------
                                         YVONNE PATERSON
                                         ADDRESS: 323 Johnson Pavilion
                                                  36th St. and Hamilton Walk
                                                  Philadelphia, PA  19104-6076

                                         /s/ James Patton
                                         ---------------------------------------
                                         JAMES PATTON
                                         ADDRESS: c/o Millennium Oncology
                                                  Management
                                                  250 West Lancaster Avenue
                                                  Suite 100
                                                  Paoli, PA  19301

                                         /s/ Roni Appel
                                         ---------------------------------------
                                         RONI APPEL
                                         ADDRESS: 22 Ruth Lane
                                                  Demarest, NJ 07627

                                         /s/ William Kahn
                                         ---------------------------------------
                                         WILLIAM KAHN
                                         ADDRESS: 7903 Long Meadow Road
                                                  Baltimore, MD  21208

                                         /s/ Richard Yelovich
                                         ---------------------------------------
                                         RICHARD YELOVICH
                                         ADDRESS: C/O Millennium Oncology
                                                  Management
                                                  250 West Lancaster Avenue
                                                  Suite 100
                                                  Paoli, PA  19301

                                         /s/ Charles Kwon
                                         ---------------------------------------
                                         CHARLES KWON
                                         ADDRESS: 834 Monroe Street
                                                  Evanston, IL  60202

                                         /s/ Tracy Yun
                                         ---------------------------------------
                                         TRACY YUN
                                         ADDRESS: 90 LaSalle Street
                                                  Apt. #13G
                                                  New York, NY 10027

                                         /s/ Thomas McKearn
                                         ---------------------------------------
                                         THOMAS MCKEARN
                                         ADDRESS: 6040 Lower Mountain Road
                                                  New Hope, PA  18938


                                       44


                                   SCHEDULE A

     NAME                                                      NUMBER OF SHARES*

     TechVectors, LLC                                                  7,043,647
     The Trustees of the University of Pennsylvania                    6,339,282
     Yvonne Paterson                                                     704,365
     Crestwood, LLC                                                      151,887
     Flamm Family Partner, LP                                            243,019
     James Patton                                                        330,785
     Roni Appel                                                          121,509
     William Kahn                                                        151,517
     Trinita LLC                                                         151,289
     Richard Yelovich                                                    151,289
     Charles Kwon                                                         60,197
     Tracy Yun                                                            60,197
     Thomas McKearn                                                       88,741

* Numbers reflect the Post-Closing Amounts

TechVectors,  LLC, the current shareholder of Advaxis will distribute its shares
of Advaxis to its members at Closing. Its member are:

Flamm Family Partners, LP
Roni Appel
James Patton
Open Ventures LLC


                                       45


                                   SCHEDULE B

         POST CLOSING / PRE FINANCING FULLY DILUTED CAPITALIZATION TABLE


- --------------------------------------------------------------------------------
                                                                   TOTAL ON A
                                                                     FULLY
NAME:                            OPTIONS  WARRANTS     SHARES     DILUTED BASIS
- --------------------------------------------------------------------------------
GXPT previous owners                                     752,600         752,600
- --------------------------------------------------------------------------------
Sunrise Securities Corp. and/or
its designees                                            752,600         752,600
- --------------------------------------------------------------------------------
Flamm Family Partners, LP*                     8,910   2,585,094       2,594,004
- --------------------------------------------------------------------------------
Roni Appel*                                   14,449   2,463,584       2,478,033
- --------------------------------------------------------------------------------
James Patton*                     56,349      36,551   2,672,860       2,765,760
- --------------------------------------------------------------------------------
Open Ventures, LLC*                                       17,422          17,422
- --------------------------------------------------------------------------------
The Trustees of the University
of Pennsylvania                                        6,339,282       6,339,282
- --------------------------------------------------------------------------------
Yvonne Paterson                  169,048                 704,365         873,413
- --------------------------------------------------------------------------------
Crestwood, LLC                                22,274     151,887         174,161
- --------------------------------------------------------------------------------
William Kahn                                             151,517         151,517
- --------------------------------------------------------------------------------
Trinita LLC                                              151,289         151,289
- --------------------------------------------------------------------------------
Richard Yelovich                                         151,289         151,289
- --------------------------------------------------------------------------------
Charles Kwon                                   8,910      60,147          69,107
- --------------------------------------------------------------------------------
Tracy Yun                                                 60,197          60,197
- --------------------------------------------------------------------------------
Thomas McKearn                    82,763      22,274      88,741         193,778
- --------------------------------------------------------------------------------
Marilyn Mendell                               31,184                      31,184
- --------------------------------------------------------------------------------
J. Todd Derbin                 1,172,767      73,049                   1,245,816
- --------------------------------------------------------------------------------
Carmel Ventures, Inc.             70,436      57,913                     128,349
- --------------------------------------------------------------------------------
Scott Flamm                       70,436      31,184                     101,620
- --------------------------------------------------------------------------------
Jonnas Grossman                                8,910                       8,910
- --------------------------------------------------------------------------------
Kerry Propper                                 22,274                      22,274
- --------------------------------------------------------------------------------
Gina Ferarri                                   8,910                       8,910
- --------------------------------------------------------------------------------
Adele Pfenninger                               4,455                       4,455
- --------------------------------------------------------------------------------
Gene Mancino                                 142,555                     142,555
- --------------------------------------------------------------------------------
Port of technology                            46,956                      46,956
- --------------------------------------------------------------------------------
Fern                                           8,910                       8,910
- --------------------------------------------------------------------------------
Cornucopia Pharmaceutical                     35,218                      35,218
- --------------------------------------------------------------------------------
Thorsten Verch                    56,348                                  56,348
- --------------------------------------------------------------------------------
Christian Peters                 228,919                                 228,919
- --------------------------------------------------------------------------------
Pentegram                         35,639                                  35,639
- --------------------------------------------------------------------------------
Joy Cavagnaro                     84,524                                  84,524
- --------------------------------------------------------------------------------
Bruce Mackler                     52,827                                  52,827
- --------------------------------------------------------------------------------
Madison Keats                     28,175                                  28,175
- --------------------------------------------------------------------------------
DNA Bridges                       16,200                                  16,200
- --------------------------------------------------------------------------------


                                       46


Pramod Srivastava                 58,110                                  58,110
- --------------------------------------------------------------------------------
Steve Roth                        82,763                                  82,763
- --------------------------------------------------------------------------------
Dr. Lorber                        58,110                                  58,110
- --------------------------------------------------------------------------------
Carl June                         58,110                                  58,110
- --------------------------------------------------------------------------------

TOTALS:                        2,381,525     584,885  17,102,923      20,069,333
- --------------------------------------------------------------------------------

*  TechVectors,  LLC, the current  shareholder  of Advaxis will  distribute  its
shares of Advaxis to its members at Closing as follows:

Flamm Family Partners, LP: 2,341,320
Roni Appel:                2,341,320
James Patton:              2,341,320
Open Ventures LLC:            17,422


                                       47


Section 5.02

Pursuant to the terms of the Investment  Banking  Agreement  between Advaxis and
Sunrise  Securities Corp.,  Sunrise Securities Corp. and/or its designees are to
receive 752,600 shares of common stock of GXPT


                                       48


                                    EXHIBIT X
                     FORM OF INVESTOR REPRESENTATION LETTER

                     GREAT EXPECTATIONS AND ASSOCIATES, INC.

To the Board of Directors of
Great Expectations and Associates, Inc.

            The undersigned (the "Investor") represents that:

            (i) He,  she or it is  acquiring  the  shares of common  stock  (the
"Shares"),  of Great Expectations and Associates,  Inc., a Colorado  corporation
(the "Company") to be issued  pursuant to the Share Exchange and  Reorganization
Agreement, among the Company, Advaxis, Inc., a Delaware corporation ("Advaxis"),
and the  shareholders  of  Advaxis  (the  "Agreement")  for his,  her or its own
account and for investment  only and not with a view to  distribution  or resale
thereof within the meaning of such phrase as defined under the Securities Act of
1933, as amended (the  "Securities  Act"). The Investor shall not dispose of any
part or all of such Shares in violation of the  provisions of the Securities Act
and the rules  and  regulations  promulgated  under  the  Securities  Act by the
Securities and Exchange Commission (the "SEC"), and all applicable provisions of
state securities laws and regulations.

            (ii) If the Investor is a natural  person,  the Investor has reached
the age of maturity  in the  jurisdiction  in which the  Investor  resides,  has
adequate  means of providing  for the  Investor's  current  financial  needs and
contingencies,  is able to bear the substantial  economic risks of an investment
in the Shares for an  indefinite  period of time,  has no need for  liquidity in
such investment  and, at the present time,  could afford a complete loss of such
investment.

            (iii) The Investor acknowledges that he, she or it has been afforded
access  to all  material  information  which it has  requested  relevant  to its
decision to acquire the Shares and to ask questions of the Company's  management
and that,  neither the  Company  nor anyone  acting on behalf of the Company has
made any  representations  or  warranties  to the Investor  which have  induced,
persuaded, or stimulated the Investor to acquire the Shares.

            (iv) Either alone, or together with its investment  advisor(s),  the
Investor has the knowledge and  experience in financial and business  matters to
be capable of evaluating the merits and risks of the  prospective  investment in
the Shares,  and each the Investor is and will be able to bear the economic risk
of the investment in the Shares.

            (v) The Investor  acknowledges  that the certificate or certificates
representing  the  Shares  shall  bear a  legend  in  substantially  the form as
follows:

            THE SHARES  REPRESENTED BY THIS CERTIFICATE HAVE NOT BEEN REGISTERED
            UNDER THE SECURITIES ACT OF 1933, AS AMENDED, AND MAY NOT BE OFFERED
            FOR SALE, SOLD, OR OTHERWISE  DISPOSED OF, EXCEPT IN COMPLIANCE WITH
            THE REGISTRATION  PROVISIONS OF SUCH ACT OR PURSUANT TO AN EXEMPTION
            FROM SUCH REGISTRATION  PROVISIONS,  THE AVAILABILITY OF WHICH IS TO
            BE ESTABLISHED TO THE SATISFACTION OF THE COMPANY.


                                       49


            (vi) The Investor  acknowledges being informed that the Shares to be
issued  pursuant to the Agreement  shall be  unregistered,  shall be "restricted
securities"  as defined in paragraph (a) of Rule 144 under the  Securities  Act,
and must be held indefinitely unless (a) they are subsequently  registered under
the Securities Act, or (b) an exemption from such registration is available.

            (vii) The  following  information  should be  provided by the person
making  the  investment  decision  whether  on his own behalf or on behalf of an
entity:

            (1) Name of Investor:                                    Age:
                                 -----------------------------------     -------

            (2) Name of person making investment decision
                                                                     Age:
                -----------------------------------------------------    -------
                (Print)

            (3) Principal residence address and telephone number: (___) ________

                ----------------------------------------------------------------

                Email Address:
                ----------------------------------------------------------------

            (4) Secondary residence address and telephone number: (___) ________

                ----------------------------------------------------------------

                ----------------------------------------------------------------

            The undersigned  has no present  intention of becoming a resident of
any other state or jurisdiction.

            (5) Name, address, telephone number and facsimile number of
                employer or business:

                ----------------------------------------------------------------

                ----------------------------------------------------------------

                ----------------------------------------------------------------

                ----------------------------------------------------------------

                (i) Nature of business
                                      ------------------------------------------

                (ii) Position and nature of responsibilities

                     -----------------------------------------------------------

            (6) Length of employment or in current position
                                                           ---------------------


                                       50


            (7) Prior employment,  positions or occupations during the past five
                years (and the inclusive dates of each) are as follows:

                Nature of Employment,
                or Occupation              Position/Duties             From/To


                ----------------------------------------------------------------

                ----------------------------------------------------------------

                ----------------------------------------------------------------

            Attach  additional  pages to answer any questions in greater detail,
if necessary.

            The undersigned should answer the following questions, which pertain
to  income,  tax rate,  net  worth,  liquid  assets,  and  non-liquid  assets by
including  spousal  contribution  even  though the  investment  shall be held in
single name.

            (8) Business or  professional  education and the degree(s)  received
                are as follows:

                       School                  Degree              Year Received


                ----------------------------------------------------------------

                ----------------------------------------------------------------

            (viii) ACCREDITED INVESTOR REPRESENTATIONS.  Initial all appropriate
spaces on the following  pages  indicating the basis upon which the  undersigned
qualifies as an accredited  investor  (please  initial only where  appropriate).
[MUST INITIAL ONE]


            For Individual Investors Only:

            (1)   ____ I certify that I am an accredited investor because I have
                  an individual net worth,  or my spouse and I have combined net
                  worth, in excess of $1,000,000. For purposes of this question,
                  "net  worth"  means the excess of total  assets at fair market
                  value, including home, home furnishings and automobiles,  over
                  total liabilities.

            (2a)  ____ I certify that I am an accredited  investor because I had
                  individual income (exclusive of any income  attributable to my
                  spouse)  of  more  than  $200,000  in  2002  and  2003  and  I
                  reasonably  expect to have an  individual  income in excess of
                  $200,000 this year.


                                       51


            (2b)  ____  Alternatively,  my  spouse  and I have  joint  income in
                  excess of $300,000 in each applicable year.

            (3)   ____ I am a director or executive officer of the Company.

            Other Investors:

            (4)   ____  The  undersigned   certifies  that  it  is  one  of  the
                  following:  any bank as  defined  in  Section  3(a)(2)  of the
                  Securities  Act whether  acting in its individual or fiduciary
                  capacity;  any broker or dealer registered pursuant to section
                  15 of the Securities  Exchange Act of 1934;  insurance company
                  as defined in Section 2(13) of the Securities Act;  investment
                  company registered under the Investment Company Act of 1940 or
                  a business  development company as defined in Section 2(a)(48)
                  of that Act; Small Business Investment Company licensed by the
                  U.S. Small Business Administration under Section 301(c) or (d)
                  of the  Small  Business  Investment  Act  of  1958;  any  plan
                  established   and   maintained  by  a  state,   its  political
                  subdivisions,  or any agency or  instrumentality of a state or
                  its political subdivisions,  for the benefit of its employees,
                  if such  plan  has  total  assets  in  excess  of  $5,000,000;
                  employee  benefit  plan  within the  meaning of Title I of the
                  Employee  Retirement  Income  Security  Act  of  1974,  if the
                  investment decision is made by a plan fiduciary, as defined in
                  Section 3(21) of such Act, which is either a bank, savings and
                  loan association,  insurance company, or registered investment
                  advisor,  or if the employee  benefit plan has total assets in
                  excess  of  $5,000,000,  or  if  a  self-directed  plan,  with
                  investment   decisions   made  solely  by  persons   that  are
                  accredited investors.

            (5)   ____ The undersigned  certifies that it is a private  business
                  development  company as defined in Section  202(a)(22)  of the
                  Investment Advisors Act of 1940.

            (6)   ____  The  undersigned  certifies  that  it is a  organization
                  described in Section  501(c)(3) of the U.S.  Internal  Revenue
                  Code, corporation,  Massachusetts or similar business trust or
                  partnership,  not formed for the specific purpose of acquiring
                  the  securities  offered,  with  total  assets  in  excess  of
                  $5,000,000.

            (7)   ____ The undersigned  certifies that it is a trust, with total
                  assets in excess of  $5,000,000,  not formed for the  specific
                  purpose of acquiring the securities offered, whose purchase is
                  directed  by a  sophisticated  person  as  described  in  Rule
                  506(b)(2)(ii) of the Securities Act.

            (8)   ____ The  undersigned  certifies that it is an entity in which
                  all of the equity owners are accredited investors.


                                       52


Individual Investors:


- --------------------------------------------------------------------------------
Social Security Number                  Print Name of Investor No. 1


                                        ----------------------------------------
                                        Signature of Investor No. 1


- --------------------------------------- ----------------------------------------
Social Security Number                  Print Name of Investor No. 2


                                        ----------------------------------------
                                        Signature of Investor No. 2

Manner in which Shares are to be held:

_____ Individual Ownership                         _____ Partnership

_____ Tenants-in-Common                            _____ Trust

_____ Joint Tenant With Right of Survivorship      _____ Corporation

_____ Community Property                           _____ Employee Benefit Plan

_____ Separate Property                            _____ Other (please indicate)

Corporate or Other Entity:


- -----------------------------------          -----------------------------------
Federal ID Number                            Print Name of Entity


                                        By:
                                           -------------------------------------
                                           Signature, Title

DATED: _______________, 2004


                                       53