EXHIBIT 4.5




                              UNIT PURCHASE OPTION

                               FOR THE PURCHASE OF

                                 1,000,000 UNITS

                                       OF

                         VICEROY ACQUISITION CORPORATION



                                TABLE OF CONTENTS

                                                                            Page

1.   PURCHASE OPTION...........................................................1

2.   EXERCISE..................................................................2
     2.1    Exercise Form......................................................2
     2.2    Legend.............................................................2
     2.3    Cashless Exercise..................................................2
            2.3.1   Determination of Amount....................................2
            2.3.2   Mechanics of Cashless Exercise.............................3

3.   TRANSFER..................................................................3
     3.1    General Restrictions...............................................3
     3.2    Restrictions Imposed by the Act....................................3

4.   NEW PURCHASE OPTIONS TO BE ISSUED.........................................3
     4.1    Partial Exercise or Transfer.......................................3
     4.2    Lost Certificate...................................................3

5.   REGISTRATION RIGHTS.......................................................4
     5.1    Demand Registration................................................4
            5.1.1   Grant of Right.............................................4
            5.1.2   Terms......................................................4
     5.2    "Piggy-Back" Registration..........................................4
            5.2.1   Grant of Right.............................................4
            5.2.2   Terms......................................................4
     5.3    Damages............................................................5
     5.4    General Terms......................................................5
            5.4.1   Indemnification............................................5
            5.4.2   Exercise of Purchase Options...............................5
            5.4.3   Documents Delivered to Holders.............................5
            5.4.4   Underwriting Agreement.....................................6
            5.4.5   Rule 144 Sale..............................................6
            5.4.6   Supplemental Prospectus....................................6

6.   ADJUSTMENTS...............................................................6
     6.1    Adjustments to Exercise Price and Number of Securities.............6
            6.1.1   Stock Dividends - Split-Ups................................7
            6.1.2   Aggregation of Shares......................................7
            6.1.3   Replacement of Securities upon Reorganization, etc.........7
            6.1.4   Changes in Form of Purchase Option.........................7
     6.2    [Intentionally Omitted]............................................7
     6.3    Substitute Purchase Option.........................................7
     6.4    Elimination of Fractional Interests................................8


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7.   RESERVATION AND LISTING...................................................8

8.   CERTAIN NOTICE REQUIREMENTS...............................................8
     8.1    Holder's Right to Receive Notice...................................8
     8.2    Events Requiring Notice............................................8
     8.3    Notice of Change in Exercise Price.................................8
     8.4    Transmittal of Notices.............................................9

9.   MISCELLANEOUS.............................................................9
     9.1    Amendments.........................................................9
     9.2    Headings...........................................................9

10.  ENTIRE AGREEMENT..........................................................9
     10.1   Binding Effect.....................................................9
     10.2   Governing Law; Submission to Jurisdiction..........................9
     10.3   Waiver, Etc........................................................9
     10.4   Execution in Counterparts.........................................10
     10.5   Exchange Agreement................................................10
     10.6   Underlying Warrants...............................................10


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THE REGISTERED HOLDER OF THIS PURCHASE OPTION BY ITS ACCEPTANCE  HEREOF,  AGREES
THAT IT WILL NOT SELL,  TRANSFER OR ASSIGN THIS PURCHASE OPTION EXCEPT AS HEREIN
PROVIDED AND THE REGISTERED  HOLDER OF THIS PURCHASE  OPTION AGREES THAT IT WILL
NOT SELL,  TRANSFER,  ASSIGN,  PLEDGE OR HYPOTHECATE  THIS PURCHASE OPTION FOR A
PERIOD OF ONE YEAR FOLLOWING THE EFFECTIVE DATE (DEFINED  BELOW) TO ANYONE OTHER
THAN (I) THE SHEMANO  GROUP,  INC.  ("SHEMANO")  OR AN UNDERWRITER OR A SELECTED
DEALER IN CONNECTION  WITH THE OFFERING,  OR (II) A BONA FIDE OFFICER OR PARTNER
OF SHEMANO OR OF ANY SUCH UNDERWRITER OR SELECTED DEALER.

THIS   PURCHASE   OPTION  IS  NOT   EXERCISABLE   PRIOR  TO  THE  LATER  OF  (I)
______________,   2006  AND  (II)  THE   CONSUMMATION  BY  VICEROY   ACQUISITION
CORPORATION  ("COMPANY") OF A MERGER, CAPITAL STOCK EXCHANGE,  ASSET ACQUISITION
OR OTHER SIMILAR BUSINESS  COMBINATION  ("BUSINESS  COMBINATION")  (AS DESCRIBED
MORE FULLY IN THE  COMPANY'S  REGISTRATION  STATEMENT  (DEFINED  HEREIN)).  THIS
PURCHASE OPTION SHALL BE VOID AFTER 5:00 P.M EASTERN TIME, _____________, 2010.

                              UNIT PURCHASE OPTION

                               FOR THE PURCHASE OF

                                 1,000,000 UNITS

                                       OF

                         VICEROY ACQUISITION CORPORATION

1.    Purchase Option.

      THIS CERTIFIES THAT, in consideration of $100.00 duly paid by or on behalf
of The Shemano Group,  Inc.  ("Shemano"),  as registered  owner of this Purchase
Option (the "Purchase Option"), to Viceroy Acquisition Corporation  ("Company"),
Shemano  is  entitled,  at any time or from  time to time  upon the later of (i)
___________,   2006  and  (ii)  the  consummation  of  a  Business   Combination
("Commencement Date"), and at or before 5:00 p.m., Eastern Time,  _____________,
2010  ("Expiration  Date"),  but not thereafter,  to subscribe for, purchase and
receive,  in whole or in part, up to One Million  (1,000,000) units ("Units") of
the Company,  each Unit  consisting of one share of common stock of the Company,
par value  $.0001 per share  ("Common  Stock"),  and one warrant  ("Warrant(s)")
expiring  four  years  from  the  effective  date  ("Effective   Date")  of  the
registration  statement  ("Registration  Statement") pursuant to which Units are
offered  for sale to the public  ("Offering").  Each  Warrant is the same as the
warrants included in the Units being registered for sale to the public by way of
the  Registration   Statement  ("Public  Warrants")  except  that  the  Warrants
underlying the Units  comprising  this Purchase Option have an exercise price of
$7.50 per share. If the Expiration  Date is a day on which banking  institutions
are  authorized by law to close,  then this Purchase  Option may be exercised on
the next  succeeding  day which is not such a day in  accordance  with the terms
herein.  During the period ending on the Expiration Date, the Company agrees not
to take any action that would  terminate  the  Purchase  Option.  This  Purchase
Option is  initially  exercisable  at $10.00  per Unit so  purchased;  provided,
however,  that upon the  occurrence of any of the events  specified in Section 6
hereof, the rights granted by this Purchase Option, including the exercise price
per Unit and the number of Units (and shares of Common Stock and Warrants) to be
received upon such exercise, shall be adjusted as therein specified.

      The term  "Exercise  Price" shall mean the initial  exercise  price or the
adjusted exercise price, depending on the context.

      The  term  "Holder"  shall  mean,  as of  any  date,  Shemano  and/or  any
transferee  who acquired the Purchase  Option(s) in accordance  with section 3.1
hereof.

      The term "Business Day" shall mean any day,  except a Saturday,  Sunday or
legal  holiday  on which the  banking  institutions  in the City of New York are
authorized or obligated by law or executive order to close.




2.    Exercise.

      2.1   Exercise  Form.  In order to  exercise  this  Purchase  Option,  the
exercise form attached  hereto must be duly executed and completed and delivered
to the Company,  together with this Purchase  Option and payment of the Exercise
Price for the Units being  purchased  payable in cash or by  certified  check or
official bank check. If the subscription  rights represented hereby shall not be
exercised at or before 5:00 p.m.,  Eastern time, on the  Expiration  Date,  this
Purchase  Option shall become and be void without  further force or effect,  and
all rights represented hereby shall cease and expire.

      2.2   Legend.  Each  certificate  for the securities  purchased under this
Purchase  Option shall bear a legend as follows unless such securities have been
registered under the Securities Act of 1933, as amended ("Act"):

            "The  securities  represented  by this  certificate  have  not  been
            registered  under the Securities Act of 1933, as amended  ("Act") or
            applicable  state law. The  securities  may not be offered for sale,
            sold  or  otherwise  transferred  except  pursuant  to an  effective
            registration  statement  under the Act, or pursuant to an  exemption
            from registration under the Act and applicable state law."

      2.3   Cashless Exercise.

            2.3.1 Determination  of  Amount.  In  lieu  of  the  payment  of the
Exercise Price  multiplied by the number of Units for which this Purchase Option
is  exercisable  (and in lieu of being  entitled  to  receive  Common  Stock and
Warrants) in the manner required by Section 2.1, the Holder shall have the right
(but not the obligation) to convert any  exercisable but unexercised  portion of
this Purchase Option into Units ("Conversion  Right") as follows:  upon exercise
of the  Conversion  Right,  the  Company  shall  deliver to the Holder  (without
payment by the Holder of any of the Exercise Price in cash) that number of Units
(or that number of shares of Common Stock and Warrants comprising that number of
Units)  equal to the  quotient  obtained by dividing (x) the "Value" (as defined
below) of the portion of the Purchase  Option being converted by (y) the Current
Market  Value (as defined  below).  The  "Value" of the portion of the  Purchase
Option being  converted shall equal the remainder  derived from  subtracting (a)
(i) the Exercise  Price  multiplied by (ii) the number of Units  underlying  the
portion of this  Purchase  Option being  converted  from (b) the Current  Market
Value of a Unit multiplied by the number of Units  underlying the portion of the
Purchase Option being converted. As used herein, the term "Current Market Value"
per Unit at any date means: (A) in the event that neither the Units nor Warrants
are still trading, the remainder derived from subtracting (x) the exercise price
of the Warrants multiplied by the number of shares of Common Stock issuable upon
exercise of the  Warrants  underlying  one Unit from (y) (i) the Current  Market
Price of the  Common  Stock  multiplied  by (ii) the  number of shares of Common
Stock  underlying  one Unit,  which  shall  include  the shares of Common  Stock
underlying the Warrants  included in such Unit; (B) in the event that the Units,
Common Stock and Warrants  are still  trading,  (i) if the Units are listed on a
national  securities  exchange or quoted on the Nasdaq National  Market,  Nasdaq
SmallCap  Market or NASD OTC Bulletin  Board (or successor  such as the Bulletin
Board  Exchange),  the last  sale  price of the Units in the  principal  trading
market for the Units as reported  by the  exchange,  Nasdaq or the NASD,  as the
case may be, on the last trading day preceding the date in question;  or (ii) if
the Units are not  listed on a  national  securities  exchange  or quoted on the
Nasdaq  National  Market,  Nasdaq SmallCap Market or the NASD OTC Bulletin Board
(or successor exchange), but is traded in the residual  over-the-counter market,
the closing bid price for Units on the last  trading day  preceding  the date in
question  for which such  quotations  are  reported by the Pink  Sheets,  LLC or
similar  publisher of such  quotations;  and (C) in the event that the Units are
not still  trading but the Common  Stock and Warrants  underlying  the Units are
still trading,  the Current Market Price of the Common Stock plus the product of
(x) the Current  Market  Price of the  Warrants  and (y) the number of shares of
Common Stock  underlying the Warrants  included in one Unit. The "Current Market
Price" shall mean (i) if the Common Stock (or  Warrants,  as the case may be) is
listed on a  national  securities  exchange  or quoted  on the  Nasdaq  National
Market,  Nasdaq SmallCap Market or NASD OTC Bulletin Board (or successor such as
the  Bulletin  Board  Exchange),  the last sale  price of the  Common  Stock (or
Warrants) in the  principal  trading  market for the Common Stock as reported by
the  exchange,  Nasdaq or the NASD,  as the case may be, on the last trading day
preceding the date in question;  (ii) if the Common Stock (or  Warrants,  as the
case may be) is not listed on a national  securities  exchange  or quoted on the
Nasdaq  National  Market,  Nasdaq SmallCap Market or the NASD OTC Bulletin Board
(or successor exchange), but is traded in the residual  over-the-counter market,
the closing bid price for the Common Stock (or Warrants) on the last trading day
preceding  the date in question  for which such  quotations  are reported by the
Pink Sheets, LLC or similar publisher of such quotations;  and (iii) if the fair
market value of the Common Stock cannot be determined  pursuant to clause (i) or
(ii) above, such price as the Board of Directors of the Company shall determine,
in good faith.


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            2.3.2 Mechanics of Cashless  Exercise.  The Cashless  Exercise Right
may be exercised by the Holder on any business day on or after the  Commencement
Date and not later than the Expiration  Date by delivering  the Purchase  Option
with the duly executed  exercise form attached hereto with the cashless exercise
section  completed to the Company,  exercising  the Cashless  Exercise Right and
specifying  the total number of Units the Holder will purchase  pursuant to such
Cashless Exercise Right.

            2.3.3 Warrant Exercise.  Any Warrants  underlying the Units shall be
issued  pursuant  to and  subject to the terms and  conditions  set forth in the
Warrant Agreement, entered into by and between the Company and Continental Stock
Transfer & Trust Company, dated as of _____, 2005; provided,  that, the exercise
price of the Warrants shall be as set forth herein.

3.    Transfer.

      3.1   General Restrictions. The registered Holder of this Purchase Option,
by its acceptance hereof, agrees that it will not sell, transfer, assign, pledge
or  hypothecate  this  Purchase  Option for a period of one year  following  the
Effective  Date to anyone other than (i) Shemano or an underwriter or a selected
dealer in connection  with the Offering,  or (ii) a bona fide officer,  partner,
subsidiary or other affiliate of Shemano or of any such  underwriter or selected
dealer.  On and after the first anniversary of the Effective Date, this Purchase
Option may be sold, transferred,  assigned,  pledged,  hypothecated or otherwise
disposed of, in whole or in part,  subject to compliance with or exemptions from
applicable  securities  laws.  In order to make any  permitted  assignment,  the
Holder must  deliver to the Company the  assignment  form  attached  hereto duly
executed and  completed,  together  with the Purchase  Option and payment of all
transfer  taxes,  if any,  payable in  connection  therewith.  The Company shall
within five business  days  transfer  this  Purchase  Option on the books of the
Company and shall execute and deliver a new Purchase Option or Purchase  Options
of like tenor to the appropriate  assignee(s)  expressly evidencing the right to
purchase the aggregate number of Units purchasable  hereunder or such portion of
such number as shall be contemplated by any such assignment.

      3.2   Restrictions  Imposed by the Act. The  securities  evidenced by this
Purchase  Option shall not be  transferred  unless and until (i) the Company has
received  the  opinion of  counsel  for the Holder  that the  securities  may be
transferred  pursuant  to an  exemption  from  registration  under  the  Act and
applicable  state  securities  laws, the availability of which is established to
the reasonable satisfaction of the Company (the Company hereby agreeing that the
opinion  of  Blank  Rome  LLP  shall  be  deemed  satisfactory  evidence  of the
availability  of  an  exemption),   or  (ii)  a  registration   statement  or  a
post-effective   amendment  to  the  Registration  Statement  relating  to  such
securities  has  been  filed  by  the  Company  and  declared  effective  by the
Securities  and  Exchange   Commission  and  compliance  with  applicable  state
securities law has been established.

4.    New Purchase Options to be Issued.

      4.1   Partial Exercise or Transfer. Subject to the restrictions in Section
3 hereof, this Purchase Option may be exercised or assigned in whole or in part.
In the event of the exercise or assignment  hereof in part only,  upon surrender
of this  Purchase  Option  for  cancellation,  together  with the duly  executed
exercise or  assignment  form and funds  sufficient  to pay any  Exercise  Price
(except to the extent the Holder  elects to  exercise  this  Purchase  Option by
means of cashless  exercise as  provided by Section 2.3 above)  and/or  transfer
tax, the Company shall cause to be delivered to the Holder  without charge a new
Purchase  Option of like tenor to this Purchase Option in the name of the Holder
evidencing  the right of the Holder to purchase the number of Units  purchasable
hereunder as to which this Purchase  Option has not been  exercised or assigned.
In addition, the Company shall cause to be delivered to any permitted transferee
without  charge a new Purchase  Option of like tenor to this Purchase  Option in
the name of such transferee  evidencing the right of such transferee to purchase
the number of Units  purchasable  hereunder as to which this Purchase Option has
been transferred to such transferee.


                                       3


      4.2   Lost   Certificate.   Upon   receipt  by  the  Company  of  evidence
satisfactory  to it of the  loss,  theft,  destruction  or  mutilation  of  this
Purchase Option and of reasonably satisfactory indemnification or the posting of
a bond,  the Company  shall  execute and deliver a new  Purchase  Option of like
tenor and date. Any such new Purchase  Option executed and delivered as a result
of such loss,  theft,  mutilation or destruction  shall  constitute a substitute
contractual obligation on the part of the Company.

5.    Registration Rights.

      5.1   Demand Registration.

            5.1.1 Grant of Right.  The Company,  upon written  demand  ("Initial
Demand Notice") of the Holder(s) of at least 51% of the Purchase  Options and/or
the underlying  Units and/or the  underlying  securities  ("Majority  Holders"),
agrees to register on one occasion,  all or any portion of the Purchase  Options
requested by the Majority  Holders in the Initial  Demand  Notice and all of the
securities underlying such Purchase Options,  including the Units, Common Stock,
the Warrants and the Common Stock  underlying  the Warrants  (collectively,  the
"Registrable   Securities").   On  such  occasion,   the  Company  will  file  a
registration  statement  or  a  post-effective  amendment  to  the  Registration
Statement covering the Registrable Securities within sixty days after receipt of
the Initial  Demand  Notice and use its best  efforts to have such  registration
statement or  post-effective  amendment  declared  effective as soon as possible
thereafter.  The demand for registration may be made at any time during a period
of five years beginning on the Effective Date. The Company  covenants and agrees
to give  written  notice of its  receipt  of any  Initial  Demand  Notice by any
Holder(s) to all other  registered  Holders of the Purchase  Options  and/or the
Registrable  Securities within ten days from the date of the receipt of any such
Initial Demand Notice.

            5.1.2 Terms. The Company shall bear all fees and expenses  attendant
to registering  the Registrable  Securities,  including the fees and expenses of
one  legal  counsel  selected  by the  Majority  Holders  to  represent  them in
connection with the sale of the Registrable Securities, but the Majority Holders
shall pay any and all  underwriting  commissions.  The Company agrees to use its
reasonable  best efforts to qualify or register the  Registrable  Securities  in
such States as are  reasonably  requested by the Majority  Holder(s);  provided,
however,  that in no event  shall  the  Company  be  required  to  register  the
Registrable Securities in a State in which such registration would cause (i) the
Company to be  obligated  to  qualify to do  business  in such  State,  or would
subject the Company to taxation as a foreign  corporation doing business in such
jurisdiction  or (ii) the principal  stockholders of the Company to be obligated
to escrow their shares of capital stock of the Company.  The Company shall cause
any  registration  statement or  post-effective  amendment filed pursuant to the
demand rights  granted  under Section 5.1.1 to remain  effective for a period of
twelve consecutive months from the effective date of such registration statement
or post-effective amendment.

      5.2   "Piggy-Back" Registration.

            5.2.1 Grant  of  Right.   In  addition   to  the  demand   right  of
registration,  the Holders of the  Purchase  Options  shall have the right for a
period  of  seven  years  commencing  on the  Effective  Date,  to  include  the
Registrable  Securities as part of any other registration of securities filed by
the Company (other than in connection  with a transaction  contemplated  by Rule
145(a)  promulgated under the Act or pursuant to Form S-8);  provided,  however,
that if,  in the  written  opinion  of the  Company's  managing  underwriter  or
underwriters,  if any,  for such  offering,  the  inclusion  of the  Registrable
Securities,  when added to the securities being registered by the Company or the
selling  stockholder(s),  will  exceed  the  maximum  amount  of  the  Company's
securities which can be marketed (i) at a price reasonably related to their then
current market value,  and (ii) without  materially and adversely  affecting the
entire  offering,  then the  Company  will  still be  required  to  include  the
Registrable  Securities,  but may require the Holders to agree,  in writing,  to
delay the sale of all or any portion of the Registrable  Securities for a period
of 90 days from the effective date of the offering,  provided,  further, that if
the  sale of any  Registrable  Securities  is so  delayed,  then the  number  of
securities to be sold by all stockholders in such public offering during such 90
day period shall be  apportioned  pro rata among all such selling  stockholders,
including  all holders of the  Registrable  Securities,  according  to the total
amount  of  securities  of the  Company  owned  by  said  selling  stockholders,
including all holders of the Registrable Securities.

            5.2.2 Terms. The Company shall bear all fees and expenses  attendant
to registering  the Registrable  Securities,  including the fees and expenses of
one  legal  counsel  selected  by the  Majority  Holders  to  represent  them in
connection with the sale of the Registrable  Securities but the Majority Holders
shall  pay any and  all  underwriting  commissions  related  to the  Registrable
Securities.  In the event of such a proposed  registration,  the  Company  shall


                                       4


furnish the then Holders of  outstanding  Registrable  Securities  with not less
than fifteen days  written  notice prior to the proposed  date of filing of such
registration  statement.  Such notice to the Holders shall  continue to be given
for each applicable registration statement filed (during the period in which the
Purchase  Option is  exercisable)  by the Company  until such time as all of the
Registrable  Securities  have been  registered  and  sold.  The  holders  of the
Registrable  Securities  shall  exercise the  "piggy-back"  rights  provided for
herein by giving written notice, within ten days of the receipt of the Company's
notice of its  intention to file a  registration  statement.  The Company  shall
cause any registration  statement filed pursuant to the above "piggyback" rights
to remain  effective  for at least nine months from the date that the Holders of
the  Registrable  Securities are first given the opportunity to sell all of such
securities.

      5.3   Damages.  Should  the  registration  or  the  effectiveness  thereof
required by Sections 5.1 and 5.2 hereof be delayed by the Company or the Company
otherwise fails to comply with such  provisions,  the Company shall, in addition
to any other equitable or other relief available to the Holder(s), be liable for
any and all  incidental,  special and  consequential  damages  sustained  by the
Holder(s),  including,  but not limited  to, the loss of any profits  that might
have been  received  by the  holder  upon the sale of shares of Common  Stock or
Warrants (and shares of Common Stock  underlying the Warrants)  underlying  this
Purchase Option.

      5.4   General Terms.

            5.4.1 Indemnification.  The Company shall indemnify the Holder(s) of
the  Registrable  Securities to be sold pursuant to any  registration  statement
hereunder and each person,  if any, who controls such Holders within the meaning
of Section  15 of the Act or Section  20(a) of the  Securities  Exchange  Act of
1934, as amended ("Exchange Act"), against all loss, claim,  damage,  expense or
liability   (including  all  reasonable   attorneys'  fees  and  other  expenses
reasonably incurred in investigating, preparing or defending against litigation,
commenced or  threatened,  or any claim  whatsoever  whether  arising out of any
action between the  underwriter  and the Company or between the  underwriter and
any third party or otherwise) to which any of them may become  subject under the
Act, the Exchange Act or otherwise, arising from such registration statement but
only to the same extent and with the same effect as the  provisions  pursuant to
which the Company has agreed to indemnify the underwriters  contained in Section
5 of the  Underwriting  Agreement  between  the  Company,  Shemano and the other
underwriters  named  therein  dated the  Effective  Date.  The  Holder(s) of the
Registrable Securities to be sold pursuant to such registration  statement,  and
their successors and assigns,  shall severally,  and not jointly,  indemnify the
Company,  its officers and directors  and each person,  if any, who controls the
Company  within the  meaning  of  Section 15 of the Act or Section  20(a) of the
Exchange Act, against all loss, claim,  damage,  expense or liability (including
all  reasonable  attorneys'  fees and  other  expenses  reasonably  incurred  in
investigating,  preparing or defending  against any claim  whatsoever)  to which
they may become  subject under the Act, the Exchange Act or  otherwise,  arising
from information  furnished by or on behalf of such Holders, or their successors
or assigns, in writing, for specific inclusion in such registration statement to
the same extent and with the same effect as the provisions  contained in Section
5 of the Underwriting  Agreement  pursuant to which the underwriters have agreed
to indemnify the Company.

            5.4.2 Exercise  of  Purchase  Options.  Nothing  contained  in  this
Purchase  Option shall be construed as requiring the Holder(s) to exercise their
Purchase Options or Warrants  underlying such Purchase Options prior to or after
the initial filing of any registration statement or the effectiveness thereof.

            5.4.3 Documents  Delivered  to Holders.  The Company  shall  furnish
Shemano, as representative of the Holders  participating in any of the foregoing
offerings, a signed counterpart,  addressed to the participating Holders, of (i)
an  opinion  of  counsel  to the  Company,  dated  the  effective  date  of such
registration  statement  (and,  if such  registration  includes an  underwritten
public offering, an opinion dated the date of the closing under any underwriting
agreement related thereto), and (ii) a "cold comfort" letter dated the effective
date of such  registration  statement  (and,  if such  registration  includes an
underwritten  public offering,  a letter dated the date of the closing under the
underwriting  agreement) signed by the independent  public  accountants who have
issued  a  report  on  the  Company's  financial  statements  included  in  such
registration  statement,  in each case covering  substantially  the same matters
with  respect  to such  registration  statement  (and  the  prospectus  included
therein) and, in the case of such  accountants'  letter,  with respect to events
subsequent to the date of such financial statements,  as are customarily covered
in  opinions  of  issuer's  counsel and in  accountants'  letters  delivered  to
underwriters in underwritten  public offerings of securities.  The Company shall
also deliver promptly to Shemano, as representative of the Holders participating


                                       5


in the offering,  the correspondence and memoranda described below and copies of
all  correspondence  between  the  Commission  and the  Company,  its counsel or
auditors and all memoranda  relating to  discussions  with the Commission or its
staff  with  respect  to the  registration  statement  and  permit  Shemano,  as
representative of the Holders, to do such investigation, upon reasonable advance
notice,   with  respect  to  information   contained  in  or  omitted  from  the
registration   statement  as  it  deems  reasonably  necessary  to  comply  with
applicable  securities  laws or rules of the National  Association of Securities
Dealers, Inc ("NASD"). Such investigation shall include access to books, records
and properties and opportunities to discuss the business of the Company with its
officers and independent  auditors,  all to such  reasonable  extent and at such
reasonable  times and as often as Shemano,  as  representative  of the  Holders,
shall  reasonably  request.  The Company  shall not be required to disclose  any
confidential  information or other records to Shemano,  as representative of the
Holders,  or to any other  person,  until and  unless  such  persons  shall have
entered  into  reasonable  confidentiality  agreements  (in form  and  substance
reasonably satisfactory to the Company), with the Company with respect thereto.

            5.4.4 Underwriting  Agreement.  The  Company  shall  enter  into  an
underwriting agreement with the managing underwriter(s), if any, selected by any
Holders  whose  Registrable  Securities  are being  registered  pursuant to this
Section 5, which  managing  underwriter  shall be  reasonably  acceptable to the
Company.  Such agreement shall be reasonably  satisfactory in form and substance
to the Company,  each Holder and such managing  underwriters,  and shall contain
such  representations,  warranties  and  covenants by the Company and such other
terms as are  customarily  contained  in  agreements  of that  type  used by the
managing underwriter. The Holders shall be parties to any underwriting agreement
relating to an  underwritten  sale of their  Registrable  Securities and may, at
their  option,  require  that  any or all the  representations,  warranties  and
covenants of the Company to or for the benefit of such  underwriters  shall also
be made to and for the  benefit  of such  Holders.  Such  Holders  shall  not be
required to make any  representations  or warranties  to or agreements  with the
Company or the underwriters  except as they may relate to such Holders and their
intended methods of  distribution.  Such Holders,  however,  shall agree to such
covenants  and   indemnification   and  contribution   obligations  for  selling
stockholders as are customarily contained in agreements of that type used by the
managing  underwriter.  Further,  such Holders shall execute appropriate custody
agreements and otherwise  cooperate fully in the preparation of the registration
statement  and other  documents  relating to any  offering in which they include
securities  pursuant to this  Section 5. Each Holder  shall also  furnish to the
Company such information  regarding itself,  the Registrable  Securities held by
it,  and the  intended  method of  disposition  of such  securities  as shall be
reasonably required to effect the registration of the Registrable Securities.

            5.4.5 Rule 144  Sale.  Notwithstanding  anything  contained  in this
Section 5 to the  contrary,  the Company  shall have no  obligation  pursuant to
Sections 5.1 or 5.2 for the  registration of Registrable  Securities held by any
Holder  (i) where such  Holder  would  then be  entitled  to sell under Rule 144
promulgated  under the Act ("Rule 144") within any  three-month  period (or such
other period prescribed under Rule 144 as may be provided by amendment  thereof)
all of the Registrable  Securities then held by such Holder,  and (ii) where the
number of  Registrable  Securities  held by such  Holder is  within  the  volume
limitations  under  paragraph (e) of Rule 144 (calculated as if such Holder were
an affiliate within the meaning of Rule 144).

            5.4.6 Supplemental Prospectus. Each Holder agrees, that upon receipt
of any  notice  from the  Company of the  happening  of any event as a result of
which the prospectus included in the Registration  Statement, as then in effect,
includes  an untrue  statement  of a material  fact or omits to state a material
fact required to be stated therein or necessary to make the  statements  therein
not misleading in light of the  circumstances  then  existing,  such Holder will
immediately  discontinue  disposition of Registrable  Securities pursuant to the
Registration  Statement covering such Registrable Securities until such Holder's
receipt  of the  copies of a  supplemental  or amended  prospectus,  and,  if so
desired by the Company, such Holder shall deliver to the Company (at the expense
of the  Company) or destroy (and  deliver to the Company a  certificate  of such
destruction) all copies,  other than permanent file copies then in such Holder's
possession,  of the prospectus  covering such Registrable  Securities current at
the time of receipt of such notice.

6.    Adjustments.

      6.1   Adjustments to Exercise Price and Number of Securities. The Exercise
Price and the number of Units underlying the Purchase Option shall be subject to
adjustment from time to time as hereinafter set forth:


                                       6


            6.1.1 Stock  Dividends - Split-Ups.  If after the date  hereof,  and
subject to the provisions of Section 6.4 below, the number of outstanding shares
of Common  Stock is increased  by a stock  dividend  payable in shares of Common
Stock or by a split-up of shares of Common Stock or other similar  event,  then,
on the effective date thereof,  the number of shares of Common Stock  underlying
each of the Units purchasable hereunder shall be increased in proportion to such
increase in  outstanding  shares.  In such case,  the number of shares of Common
Stock,  and the  exercise  price  applicable  thereto,  underlying  the Warrants
underlying  each  of the  Units  purchasable  hereunder  shall  be  adjusted  in
accordance with the terms of the Warrants.  For example, if the Company declares
a  two-for-one  stock  dividend and at the time of such  dividend  this Purchase
Option is for the  purchase  of one Unit at $10.00 per whole Unit (each  Warrant
underlying the Units is exercisable for $7.50 per share),  upon effectiveness of
the dividend, this Purchase Option will be adjusted to allow for the purchase of
one Unit at $10.00 per Unit,  each Unit  entitling  the  holder to  receive  two
shares of Common Stock and two Warrants (each Warrant  exercisable for $3.75 per
share).

            6.1.2 Aggregation of Shares.  If after the date hereof,  and subject
to the  provisions  of Section 6.4, the number of  outstanding  shares of Common
Stock is decreased by a consolidation, combination or reclassification of shares
of Common Stock or other similar event, then, on the effective date thereof, the
number  of  shares  of Common  Stock  underlying  each of the Units  purchasable
hereunder  shall be  decreased in  proportion  to such  decrease in  outstanding
shares.  In such case,  the number of shares of Common  Stock,  and the exercise
price applicable  thereto,  underlying the Warrants underlying each of the Units
purchasable  hereunder  shall be  adjusted in  accordance  with the terms of the
Warrants.

            6.1.3 Replacement of Securities upon Reorganization, etc. In case of
any reclassification or reorganization of the outstanding shares of Common Stock
other  than a change  covered by Section  6.1.1 or 6.1.2  hereof or that  solely
affects  the par value of such  shares of  Common  Stock,  or in the case of any
merger or consolidation of the Company with or into another  corporation  (other
than  a  consolidation  or  merger  in  which  the  Company  is  the  continuing
corporation and that does not result in any  reclassification  or reorganization
of the  outstanding  shares  of  Common  Stock),  or in the  case of any sale or
conveyance to another corporation or entity of the property of the Company as an
entirety or substantially as an entirety in connection with which the Company is
dissolved,  the Holder of this Purchase  Option shall have the right  thereafter
(until the  expiration  of the right of  exercise  of this  Purchase  Option) to
receive upon the exercise hereof,  for the same aggregate Exercise Price payable
hereunder  immediately  prior to such  event,  the kind and  amount of shares of
stock or other  securities or property  (including  cash)  receivable  upon such
reclassification, reorganization, merger or consolidation, or upon a dissolution
following  any such sale or  transfer,  by a Holder  of the  number of shares of
Common Stock of the Company obtainable upon exercise of this Purchase Option and
the  underlying   Warrants   immediately   prior  to  such  event;  and  if  any
reclassification  also results in a change in shares of Common Stock  covered by
Section 6.1.1 or 6.1.2,  then such adjustment shall be made pursuant to Sections
6.1.1,  6.1.2 and this Section 6.1.3 The  provisions of this Section 6.1.3 shall
similarly  apply to successive  reclassifications,  reorganizations,  mergers or
consolidations, sales or other transfers.

            6.1.4 Changes  in Form of  Purchase  Option.  This form of  Purchase
Option need not be changed because of any change  pursuant to this Section,  and
Purchase  Options issued after such change may state the same Exercise Price and
the same number of Units as are stated in the Purchase Options  initially issued
pursuant to this Agreement.  The acceptance by any Holder of the issuance of new
Purchase Options  reflecting a required or permissive change shall not be deemed
to waive any rights to an adjustment  occurring after the  Commencement  Date or
the computation thereof.

      6.2   [Intentionally Omitted].

      6.3   Substitute  Purchase  Option.  In case of any  consolidation  of the
Company  with,  or merger of the Company  with,  or merger of the Company  into,
another  corporation (other than a consolidation or merger which does not result
in  any  reclassification  or  change  of the  outstanding  Common  Stock),  the
corporation  formed by such consolidation or merger shall execute and deliver to
the Holder a  supplemental  Purchase  Option  providing  that the holder of each
Purchase  Option  then  outstanding  or to be  outstanding  shall have the right
thereafter  (until the stated  expiration of such  Purchase  Option) to receive,
upon  exercise of such Purchase  Option,  the kind and amount of shares of stock
and other securities and property  receivable upon such consolidation or merger,
by a holder of the  number of shares of Common  Stock of the  Company  for which
such  Purchase  Option  might  have  been  exercised  immediately  prior to such
consolidation, merger, sale or transfer. Such supplemental Purchase Option shall
provide for adjustments which shall be identical to the adjustments  provided in
Section  6.  The  above  provision  of this  Section  shall  similarly  apply to
successive consolidations or mergers.


                                       7


      6.4   Elimination  of  Fractional  Interests.  The  Company  shall  not be
required to issue certificates  representing fractions of shares of Common Stock
or Warrants upon the exercise of the Purchase  Option,  nor shall it be required
to issue  scrip or pay cash in lieu of any  fractional  interests,  it being the
intent of the parties  that all  fractional  interests  shall be  eliminated  by
rounding  any fraction up to the nearest  whole  number of  Warrants,  shares of
Common Stock or other securities, properties or rights.

7.    Reservation  and Listing.  The Company shall at all times reserve and keep
available out of its authorized  shares of Common Stock,  solely for the purpose
of issuance upon exercise of the Purchase Options or the Warrants underlying the
Purchase  Option,  such  number of shares of Common  Stock or other  securities,
properties or rights as shall be issuable upon the exercise thereof. The Company
covenants and agrees that, upon exercise of the Purchase  Options and payment of
the Exercise  Price  therefor,  all shares of Common Stock and other  securities
issuable upon such  exercise  shall be duly and validly  issued,  fully paid and
non-assessable  and not subject to  preemptive  rights of any  stockholder.  The
Company  further  covenants  and  agrees  that  upon  exercise  of the  Warrants
underlying the Purchase  Options and payment of the respective  Warrant exercise
price therefor,  all shares of Common Stock and other  securities  issuable upon
such exercise shall be duly and validly  issued,  fully paid and  non-assessable
and not subject to preemptive rights of any stockholder. As long as the Purchase
Options  shall be  outstanding,  the Company shall use its best efforts to cause
all (i) Units and shares of Common Stock  issuable upon exercise of the Purchase
Options,  (iii) Warrants issuable upon exercise of the Purchase Options and (iv)
shares of Common Stock  issuable upon  exercise of the Warrants  included in the
Units  issuable  upon exercise of the Purchase  Option to be listed  (subject to
official  notice of issuance) on all securities  exchanges (or, if applicable on
the Nasdaq National Market, SmallCap Market, OTC Bulletin Board or any successor
trading  market) on which the Units,  the  Common  Stock or the Public  Warrants
issued to the public in connection herewith may then be listed and/or quoted.

8.    Certain Notice Requirements.

      8.1   Holder's Right to Receive Notice.  Nothing herein shall be construed
as conferring upon the Holders the right to vote or consent as a stockholder for
the  election  of  directors  or any  other  matter,  or as  having  any  rights
whatsoever as a stockholder of the Company.  If,  however,  at any time prior to
the  expiration of the Purchase  Options and their  exercise,  any of the events
described in Section 8.2 shall occur,  then, in one or more of said events,  the
Company  shall give written  notice of such event at least fifteen days prior to
the date fixed as a record  date or the date of closing the  transfer  books for
the determination of the stockholders  entitled to such dividend,  distribution,
conversion or exchange of securities or subscription rights, or entitled to vote
on such proposed dissolution, liquidation, winding up or sale. Such notice shall
specify  such record date or the date of the closing of the transfer  books,  as
the case may be.  Notwithstanding  the  foregoing,  the Company shall deliver to
each Holder a copy of each notice given to the other stockholders of the Company
at the  same  time and in the  same  manner  that  such  notice  is given to the
stockholders.

      8.2   Events Requiring  Notice.  The Company shall be required to give the
notice described in this Section 8 upon one or more of the following events: (i)
if the Company  shall take a record of the holders of its shares of Common Stock
for the purpose of entitling them to receive a dividend or distribution  payable
otherwise  than in cash, or a cash dividend or  distribution  payable  otherwise
than out of retained earnings,  as indicated by the accounting treatment of such
dividend or distribution on the books of the Company,  or (ii) the Company shall
offer to all the holders of its Common  Stock any  additional  shares of capital
stock of the Company or securities  convertible  into or exchangeable for shares
of capital  stock of the Company,  or any option,  right or warrant to subscribe
therefor,  or (iii) a  dissolution,  liquidation  or winding  up of the  Company
(other than in connection  with a  consolidation  or merger) or a sale of all or
substantially all of its property, assets and business shall be proposed.

      8.3   Notice of Change in  Exercise  Price.  The Company  shall,  promptly
after an event  requiring a change in the Exercise  Price  pursuant to Section 6
hereof,  send notice to the Holders of such event and change  ("Price  Notice").
The Price Notice shall  describe the event  causing the change and the method of
calculating  same and  shall be  certified  as being  true and  accurate  by the
Company's Chief Executive Officer and Chief Financial Officer.


                                       8


      8.4   Transmittal of Notices.  All notices,  requests,  consents and other
communications  under this  Purchase  Option  shall be in  writing  and shall be
deemed to have been duly made when hand delivered,  or mailed by express mail or
private courier service: (i) If to the registered Holder of the Purchase Option,
to the address of such Holder as shown on the books of the  Company,  or (ii) if
to the Company, to the following address or to such other address as the Company
may designate by notice to the Holders:

                           Viceroy Acquisition Corporation
                           8235 Forsyth Boulevard, Suite 400
                           Clayton, MO 63105
                           Attn:  Chief Executive Officer

9.    Miscellaneous.

      9.1   Amendments. The Company and Shemano may from time to time supplement
or amend this  Purchase  Option  without  the  approval of any of the Holders in
order to cure any ambiguity,  to correct or supplement  any provision  contained
herein that may be defective or inconsistent  with any other provisions  herein,
or to make any other  provisions  in  regard to  matters  or  questions  arising
hereunder  that the Company and Shemano may deem necessary or desirable and that
the Company  and Shemano  deem shall not  adversely  affect the  interest of the
Holders. All other modifications or amendments shall require the written consent
of and be signed by the party against whom  enforcement of the  modification  or
amendment is sought.

      9.2   Headings.  The headings contained herein are for the sole purpose of
convenience  of reference,  and shall not in any way limit or affect the meaning
or interpretation of any of the terms or provisions of this Purchase Option.

10.   Entire Agreement. This Purchase Option (together with the other agreements
and documents  being  delivered  pursuant to or in connection with this Purchase
Option)  constitutes the entire  agreement of the parties hereto with respect to
the  subject   matter  hereof,   and   supersedes   all  prior   agreements  and
understandings  of the parties,  oral and  written,  with respect to the subject
matter hereof.

      10.1  Binding  Effect.  This  Purchase  Option  shall inure  solely to the
benefit of and shall be binding  upon,  the  Holder  and the  Company  and their
permitted assignees,  respective  successors,  legal representative and assigns,
and no other  person  shall have or be  construed to have any legal or equitable
right,  remedy or claim  under or in  respect  of or by virtue of this  Purchase
Option or any provisions herein contained.

      10.2  Governing  Law;  Submission to  Jurisdiction.  This Purchase  Option
shall be governed by and construed  and enforced in accordance  with the laws of
the State of Delaware,  without  giving effect to conflict of laws.  The Company
hereby agrees that any action, proceeding or claim against it arising out of, or
relating in any way to this Purchase Option shall be brought and enforced in the
courts of the State of  California  or of the United  States of America  for the
Northern District of California,  and irrevocably  submits to such jurisdiction,
which jurisdiction  shall be exclusive.  The Company hereby waives any objection
to such exclusive  jurisdiction  and that such courts  represent an inconvenient
forum.  Any  process or summons to be served  upon the  Company may be served by
transmitting  a copy thereof by registered  or certified  mail,  return  receipt
requested,  postage prepaid, addressed to it at the address set forth in Section
8 hereof.  Such mailing shall be deemed personal  service and shall be legal and
binding upon the Company in any action, proceeding or claim. The Company and the
Holder agree that the prevailing party(ies) in any such action shall be entitled
to recover from the other  party(ies) all of its reasonable  attorneys' fees and
expenses  relating to such action or  proceeding  and/or  incurred in connection
with the preparation therefor.

      10.3  Waiver, Etc. The failure of the Company or the Holder to at any time
enforce any of the  provisions  of this  Purchase  Option shall not be deemed or
construed  to be a waiver of any such  provision,  nor to in any way  affect the
validity of this  Purchase  Option or any  provision  hereof or the right of the
Company or any Holder to  thereafter  enforce  each and every  provision of this
Purchase Option. No waiver of any breach,  non-compliance or  non-fulfillment of
any of the  provisions  of this  Purchase  Option shall be effective  unless set
forth in a written  instrument  executed by the party or parties against whom or
which  enforcement  of such waiver is sought;  and no waiver of any such breach,
non-compliance or non-fulfillment shall be construed or deemed to be a waiver of
any other or subsequent breach, non-compliance or non-fulfillment.


                                       9


      10.4  Execution in  Counterparts.  This Purchase Option may be executed in
one or more  counterparts,  and by the  different  parties  hereto  in  separate
counterparts,  each of which shall be deemed to be an original, but all of which
taken together shall  constitute  one and the same  agreement,  and shall become
effective when one or more  counterparts  has been signed by each of the parties
hereto and delivered to each of the other parties hereto.

      10.5  Exchange  Agreement.  As a  condition  of the  Holder's  receipt and
acceptance of this Purchase Option, Holder agrees that, at any time prior to the
complete  exercise of this Purchase Option by Holder, if the Company and Shemano
enter into an agreement ("Exchange Agreement") pursuant to which they agree that
all outstanding  Purchase  Options will be exchanged for securities or cash or a
combination of both, then Holder shall agree to such exchange and become a party
to the Exchange Agreement.

      10.6  Underlying  Warrants.  At any time after  exercise  by the Holder of
this  Purchase  Option,  the  Holder may  exchange  his  Warrants  (with a $7.50
exercise  price) for Public  Warrants (with a $6.00 exercise price) upon payment
to the Company of the  difference  between the exercise price of his Warrant and
the exercise price of the Public Warrants.

                  [REMAINDER OF PAGE INTENTIONALLY LEFT BLANK]


                                       10


      IN WITNESS  WHEREOF,  the Company has caused  this  Purchase  Option to be
signed by its duly authorized officer as of the ____ day of , 2005.


                                               VICEROY ACQUISITION CORPORATION




                                               By:______________________________
                                                  Name:  Lee E. Mikles
                                                  Title: Chief Executive Officer


                                       11


Form to be used to exercise Purchase Option:

Viceroy Acquisition Corporation
8235 Forsyth Boulevard, Suite 400
Clayton, MO 63105

Date:_________________, 200__

The  undersigned  hereby elects  irrevocably to exercise all or a portion of the
within  Purchase  Option  and to  purchase  ____  Units of  Viceroy  Acquisition
Corporation and hereby makes payment of $____________ (at the rate of $_________
per Unit) in payment of the Exercise  Price pursuant  thereto.  Please issue the
Common  Stock and  Warrants as to which this  Purchase  Option is  exercised  in
accordance with the instructions given below.
                                       or

         The  undersigned  hereby  elects  irrevocably  to convert  its right to
purchase  _________  Units  purchasable  under  the  within  Purchase  Option by
surrender of the  unexercised  portion of the attached  Purchase  Option (with a
"Value" of $_______  based on a "Market  Price" of  $_______).  Please issue the
securities comprising the Units as to which this Purchase Option is exercised in
accordance with the instructions given below.


                                               _________________________________
                                               Signature


                                               _________________________________
                                               Signature Guaranteed


                   INSTRUCTIONS FOR REGISTRATION OF SECURITIES


Name_____________________________________________
               (Print in Block Letters)


Address__________________________________________

      NOTICE:  THE  SIGNATURE  TO THIS  FORM  MUST  CORRESPOND  WITH THE NAME AS
WRITTEN UPON THE FACE OF THE WITHIN PURCHASE OPTION IN EVERY PARTICULAR  WITHOUT
ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATSOEVER,  AND MUST BE GUARANTEED BY A
BANK,  OTHER THAN A SAVINGS  BANK,  OR BY A TRUST  COMPANY  OR BY A FIRM  HAVING
MEMBERSHIP ON A REGISTERED NATIONAL SECURITIES EXCHANGE.




Form to be used to assign Purchase Option:

                                   ASSIGNMENT

      (To be  executed  by the  registered  Holder to effect a  transfer  of the
within Purchase Option):

      FOR VALUE RECEIVED,___________________________________________ does hereby
sell, assign and transfer  unto______________________________________  the right
to purchase  __________  Units of Viceroy  Acquisition  Corporation  ("Company")
evidenced by the within Purchase Option and does hereby authorize the Company to
transfer such right on the books of the Company.


Dated:___________________, 200_


                                               _________________________________
                                               Signature


                                               _________________________________
                                               Signature Guaranteed

      NOTICE:  THE  SIGNATURE  TO THIS  FORM  MUST  CORRESPOND  WITH THE NAME AS
WRITTEN UPON THE FACE OF THE WITHIN PURCHASE OPTION IN EVERY PARTICULAR  WITHOUT
ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATSOEVER,  AND MUST BE GUARANTEED BY A
BANK,  OTHER THAN A SAVINGS  BANK,  OR BY A TRUST  COMPANY  OR BY A FIRM  HAVING
MEMBERSHIP ON A REGISTERED NATIONAL SECURITIES EXCHANGE.