AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JANUARY 14, 2003

                                                      REGISTRATION NO. 333-97789





                     U.S. SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C.  20549
                              ____________________

                         POST-EFFECTIVE AMENDMENT NO. 4
                                       TO
                                    FORM S-8
                             REGISTRATION STATEMENT
                                      Under
                           THE SECURITIES ACT OF 1933
                              ____________________

                                   E-REX, INC.
             (Exact Name of Registrant as Specified in Its Charter)


                                     NEVADA
                         (State or Other Jurisdiction of
                         Incorporation or Organization)

                                   88-0292890
                                (I.R.S. Employer
                               Identification No.)


                       12000 BISCAYNE BOULEVARD, SUITE 406
                              MIAMI, FLORIDA  33181
          (Address of Principal Executive Offices, Including Zip Code)
                              ____________________


                 2002 Non-Qualified Stock Grant and Option Plan
                            (Full Title of the Plan)

                              ____________________

                                 Carl E. Dilley
                       12000 Biscayne Boulevard, Suite 406
                              Miami, Florida  33181
                                 (305) 895-3350
           (Name, Address, and Telephone Number of Agent for Service)


                                   COPIES TO:

                             Brian A. Lebrecht, Esq.
                            The Lebrecht Group, APLC
                        22342 Avenida Empresa, Suite 230
                    Rancho Santa Margarita, California 92688
                                 (949) 635-1240



                                   CALCULATION  OF  REGISTRATION  FEE



                                                                                    
Title of Securities     Amount to be    Proposed Maximum            Proposed Maximum            Amount of
to be Registered        Registered      Offering Price per Share    Aggregate Offering Price    Registration Fee
- ----------------------  --------------  --------------------------  --------------------------  ------------------

Common Stock,
par value $0.001 . . .  88,500,000 (2)  $                 0.01 (1)  $                 885,000   $        81.42 (3)

TOTAL REGISTRATION FEE  88,500,000                                  $                 885,000   $        81.42 (3)


(1)     Estimated  solely  for  the  purpose  of  computing  the  amount  of the
registration fee pursuant to Rule 457(c) based on the average of the closing bid
and  ask  price  as  reported  by  the NASDAQ Over-The-Counter Bulletin Board on
August  5,  2002.

(2)     The  securities  to  be  registered  represent  shares  of  Common Stock
reserved  for  issuance under the E-Rex, Inc. 2002 Non-Qualified Stock Grant and
Option  Plan  (the "Plan").  Pursuant to Rule 416, shares of Common Stock of the
Company  issuable  pursuant  to  the exercise of awards granted or to be granted
under  the  Plan  in  order  to prevent dilution resulting from any future stock
split,  stock  dividend,  or  similar  transaction,  are  also  being registered
hereunder.

(3)     Of  the  Registration  Fees,  $63.02  was  previously  paid.


                                        2

                                     PART I

              INFORMATION REQUIRED IN THE SECTION 10(A) PROSPECTUS

ITEM  1.      PLAN  INFORMATION.*

ITEM  2.      REGISTRANT  INFORMATION AND EMPLOYEE PLAN ANNUAL INFORMATION.*

*     Information  required  by  Part  I  to  be  contained in the Section 10(a)
Prospectus  is  omitted  from the Registration Statement in accordance with Rule
428 under the Securities Act of 1933, as amended (the "Securities Act"), and the
Note  to  Part  I  of  Form  S-8.

The Registrant is filing this Post-Effective Amendment No. 4 to the Registration
Statement  on  Form  S-8  previously  filed  on  August  7,  2002, as amended in
Post-Effective  Amendment  No.  1  filed  on  September 25, 2002, Post-Effective
Amendment  No.  2  filed on October 28, 2002, and Post-Effective Amendment No. 3
filed  on  December  12, 2002, to reflect an increase in the number of shares in
the  Plan.

                                        3

                                     PART II

               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

ITEM  3.      INCORPORATION  OF  DOCUMENTS  BY  REFERENCE.

     The  following  documents  are  hereby  incorporated  by  reference in this
Registration  Statement:

     (i)  The  Registrant's Annual Report dated August 26, 2002 on Form 10-KSB/A
filed  with  the  Commission  on  August  28,  2002.

     (ii)  The  Registrant's  Quarterly  Report  Dated November 11, 2002 on Form
10-QSB  filed  with  the  Commission  on  November  14,  2002.

     (iii)  All other reports and documents previously and subsequently filed by
the Registrant before and after the date of this Registration Statement pursuant
to  Sections  13(a),  13(c), 14, or 15(d) of the Securities Exchange Act of 1934
and  prior  to the filing of a post-effective amendment which indicates that all
securities  offered  hereby  have  been sold or which deregisters all securities
then remaining unsold, shall be deemed to be incorporated by reference and to be
a  part  hereof  from  the  date  of  the  filing  of  such  documents.

ITEM  4.      DESCRIPTION  OF  SECURITIES.

     The  Company's  authorized  capital stock consists of 250,000,000 shares of
Common  Stock,  par  value  $0.001.

     The holders of Common Stock are entitled to one vote for each share held of
record on all matters on which the holders of Common Stock are entitled to vote.
Cumulative  voting  is  not  permitted  in  any  election  of  directors.

     The  holders  of  Common  Stock are entitled to receive, ratably, dividends
when,  as  and  if  declared  by  the  Board  of  Directors out of funds legally
available  therefore.  The current policy of the Board of Directors, however, is
to  retain  earnings,  if  any, for the operation and expansion of the Company's
business.

     Upon liquidation, dissolution, or winding up of the Company, the holders of
Common  Stock  are  entitled  to  share  ratably  in all assets that are legally
available  for  distribution,  after  payment  of or provision for all debts and
liabilities  and after provision is made for each class of stock, if any, having
preference  over  the  Common  Stock.

                                        4

     The  holders  of  Common  Stock  do  not  have  preemptive,  subscription,
redemption  or  conversion rights under the Company's Articles of Incorporation,
as  amended.  There  are  no redemption or sinking fund provisions applicable to
the  Common  Stock.  The  outstanding  shares of Common Stock are fully paid and
nonassessable.

ITEM  5.      INTERESTS  OF  NAMED  EXPERTS  AND  COUNSEL.

     Certain  legal matters with respect to the Common Stock offered hereby will
be  passed  upon  for  the  Company  by The Lebrecht Group, APLC, counsel to the
Company.

     The  Lebrecht  Group,  APLC, is the beneficial owner of 4,000,000 shares of
the  Company's  Common  Stock  as  of  the  date  hereof.

ITEM  6.      INDEMNIFICATION  OF  DIRECTORS  AND  OFFICERS.

     The  Corporation  Laws  of  the  State  of  Nevada and the Company's Bylaws
provide  for  indemnification  of  the  Company's  Directors for liabilities and
expenses  that  they  may  incur  in such capacities.  In general, Directors and
Officers are indemnified with respect to actions taken in good faith in a manner
reasonably  believed  to  be  in,  or  not opposed to, the best interests of the
Company, and with respect to any criminal action or proceeding, actions that the
indemnitee  had  no reasonable cause to believe were unlawful.  Furthermore, the
personal  liability  of  the  Directors  is limited as provided in the Company's
Articles  of Incorporation.  On February 15, 2002, the Board of Directors of the
Company, in accordance with the Bylaws of the Company and applicable sections of
the  Nevada  Revised Statutes, unanimously approved an Indemnification Agreement
between  the  Company  and  each  of  its  directors.

ITEM  7.      EXEMPTION  FROM  REGISTRATION  CLAIMED.

     Not  applicable.

ITEM  8.      EXHIBITS

     3.1(1)      Certificate  of  Incorporation,  as  amended,  of  E-Rex,  Inc.

     3.2(1)      By-laws  of  the  Registrant

     5.1         Opinion  of  The  Lebrecht  Group,  APLC

     10.1(2)     E-Rex,  Inc.  2002  Non-Qualified  Stock  Grant and Option Plan

     10.2(2)     Form  of  Stock  Option  Agreement

     10.3(3)     First  Amendment  to E-Rex, Inc. 2002 Non-Qualified Stock Grant
                 and  Option  Plan

     10.4(4)     Second  Amendment to E-Rex, Inc. 2002 Non-Qualified Stock Grant
                 and  Option  Plan

     10.5(5)     Third  Amendment  to E-Rex, Inc. 2002 Non-Qualified Stock Grant
                 and  Option  Plan

                                        5

     10.6        Fourth  Amendment to E-Rex, Inc. 2002 Non-Qualified Stock Grant
                 and Option  Plan

     23.1        Consent of The Lebrecht  Group, APLC (included in Exhibit 5.1).

     23.2        Consent of Parks, Tschopp, Whitcomb & Orr P.A. Certified Public
                 Accountants.
___________________
(1)     Incorporated  by  reference  from Registrant's Registration Statement on
        Form  10-SB  filed  on  September  13,  1999.
(2)     Incorporated  by  reference  from Registrant's Registration Statement on
        Form  S-8  filed  on  August  7,  2002.
(3)     Incorporated  by reference from Registrant's Post-Effective Amendment No
        1 to Registration Statement on Form S-8 filed  on  September  26,  2002.
(4)     Incorporated  by reference from Registrant's Post-Effective Amendment No
        2 to Registration Statement on Form  S-8  filed  on  October  28,  2002.
(5)     Incorporated  by reference from Registrant's Post-Effective Amendment No
        3 to Registration Statement on Form S-8  filed  on  December  12,  2002.


                                        6

ITEM  9.      UNDERTAKINGS.

(a)   The  undersigned  Registrant  hereby  undertakes:

     (1)  To  file, during any period in which offers or sales are being made, a
post-effective  amendment  to  this  Registration  Statement:

          (i)  To  include  any  prospectus required by section 10(a) (3) of the
     Securities  Act  of  1933;

          (ii)  To  reflect  in the prospectus any facts or events arising after
     the  effective  date  of  the  registration  statement  (or the most recent
     post-effective  amendment thereof) which, individually or in the aggregate,
     represent  a  fundamental  change  in  the  information  set  forth  in the
     registration  statement;  and

          (iii)  To include any material information with respect to the plan of
     distribution  not previously disclosed in the registration statement or any
     material  change  to  such  information  in  the  registration  statement;
     provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if
     the  registration  statement  is  on Form S-3, Form S-8 or Form F-3 and the
     information  required to be included in a post-effective amendment by those
     paragraphs  is contained in periodic reports filed with or furnished to the
     Commission by the registrant pursuant to Section 13 or Section 15(d) of the
     Securities  Exchange  Act of 1934 that are incorporated by reference in the
     registration  statement.

     (2) That, for the purpose of determining any liability under the Securities
Act  of  1933,  each  such  post-effective amendment shall be deemed to be a new
registration  statement  relating  to  the  securities  offered therein, and the
offering  of such securities at that time shall be deemed to be the initial BONA
FIDE  offering  thereof.

     (3)  To remove from registration by means of a post-effective amendment any
of the securities being registered which remain unsold at the termination of the
offering.

(b)   The  undersigned  Registrant  hereby  undertakes  that,  for  purposes  of
determining  any  liability under the Securities Act of 1933, each filing of the
Registrant's  Annual  Report  pursuant  to Section 13(a) or Section 15(d) of the
Securities  Exchange  Act  of  1934  (and,  where  applicable, each filing of an
employee  benefit  plan's  annual  report  pursuant  to  Section  15(d)  of  the
Securities  Exchange  Act  of  1934)  that  is  incorporated by reference in the
Registration  Statement  shall  be  deemed  to  be  a new registration statement
relating  to the securities offered therein, and the offering of such securities
at  that  time  shall  be  deemed  to be the initial BONA FIDE offering thereof.

                                        7

(c)   Insofar  as indemnification  for  liabilities arising under the Securities
Act  of  1933 may be permitted to directors, officers  and  controlling  persons
of the Registrant pursuant  to  the  foregoing  provisions,  or  otherwise,  the
Registrant  has  been advised that in the opinion of the Securities and Exchange
Commission such indemnification is against public policy as expressed in the Act
and  is, therefore, unenforceable. In the event that a claim for indemnification
against  such  liabilities (other than the payment by the Registrant of expenses
incurred  or paid by a director, officer or controlling person of the Registrant
in the successful defense of any action, suit or proceeding) is asserted by such
director,  officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the matter
has  been  settled  by  controlling  precedent, submit to a court of appropriate
jurisdiction  the  question whether such indemnification by it is against public
policy  as  expressed  in  the  Securities Act and will be governed by the final
adjudication  of  such  issue.

                                        8

                                   SIGNATURES

      Pursuant  to  the  requirements  of the Securities Act of 1933, Registrant
certifies  that  it  has  reasonable grounds to believe that it meets all of the
requirements  for  filing  on  Form  S-8  and  has duly caused this registration
statement  to  be  signed  on  its  behalf  by  the  undersigned, thereunto duly
authorized,  in  the  City  of  Miami,  State  of  Florida,  on January 8, 2003.


                                           E-Rex,  Inc.


                                           /s/  Carl  Dilley
                                           -----------------------------
                                           By:   Carl  Dilley
                                           Its:   President and Director



      Pursuant  to  the  requirements  of  the  Securities  Act  of  1933,  this
registration  statement  has  been  signed  by  the  following  persons  in  the
capacities  and  on  the  dates  indicated:




/s/  Donald  A.  Mitchell               January  8,  2003
- ----------------------------
Donald  A.  Mitchell
Chairman  of  the  Board


/s/  Joseph  Pacheco                    January  8,  2003
- ----------------------------
Joseph  Pacheco
Director

                                        9