Document:

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Exhibit 10.106c

                             STOCK PLEDGE AGREEMENT

                                                           Date: April 11, 2003

TO :     VERTICAL COMPUTER SYSTEMS, INC.

PLEDGE OF STOCK

         To induce you,  Vertical  Computer  Systems,  Inc.,  to sell  3,000,000
shares of common  stock of TranStar  Systems,  Inc.  (the  "TranStar")  for U.S.
$250,000.00 to me, Mike Radlovic, an individual ("Radlovic"), as evidenced by my
Promissory  Note, and the Loan and Security  Agreement,  by and between Radlovic
and you (the "Security Agreement"),  in that amount dated the date of this Stock
Pledge Agreement (the "Agreement"),  bearing interest at the rate of ten percent
(10%) per annum, and payable to your order on April 11, 2007 (the "Note",  which
term will include any amendments  thereto and  substitutions  therefor),  and in
consideration  of your  making said sale,  and to secure  payment of all amounts
owing  under  the Note and this  Agreement  and  performance  of all of my other
obligations  under the Note and under this  Agreement,  the  undersigned  hereby
pledge to you and grant you a  security  interest  in FIVE  MILLION  (5,000,000)
shares , with a par value of U.S. $.01 per share, of TranStar common stock owned
by       Radlovic,        represented        by        certificate(s)        no.
________________________________________________  delivered to you herewith duly
endorsed in blank or with stock powers duly signed in blank, in either case with
signatures  guaranteed by a commercial  bank in the United States or by a member
firm of the NASD or any regional or national stock exchange;  and (ii) any other
"Collateral" (as hereinafter defined).

DEFINITION OF COLLATERAL

         The term  "Collateral"  means (i) the shares of stock pledged under the
foregoing  paragraph  (collectively  called  the  "Stock"),  and (ii) any  cash,
securities or other property paid or otherwise  distributed on, with respect to,
or in exchange for any Collateral. You may at any time transfer the Stock or any
other  Collateral  into your name or the name of your nominee.  If I receive any
such other  Collateral,  I shall  promptly  deliver  the same to you in the form
received  together with any  endorsement or instrument of transfer  requested by
you; but until a "default under this Agreement" (as hereinafter defined) occurs,
I will be entitled to retain regular,  periodic dividends paid on the Stock (but
not on any other  Collateral) from the earnings of TranStar;  and you will remit
to me any such dividends which you receive. In addition, if a default under this
Agreement  occurs,  you  shall be  entitled  to vote  the  Stock  and any  other
Collateral held by you under this  Agreement,  and at all such times I shall not
be entitled to vote the Stock or any other Collateral; and I hereby grant you an
irrevocable proxy to so vote the Stock and any other Collateral.

WARRANTIES

         I hereby warrant to you that:

         a.       TranStar, Inc. is duly incorporated and validly existing under
                  the laws of the State of Nevada;

         b.       I have taken all necessary  corporate  action to authorize the
                  execution,  delivery and performance of this Agreement and the
                  Note, which constitute my legally binding obligations;

         c.       I am the sole owner of the Stock;

         d.       the Stock is validly issued, is fully paid and non-assessable,
                  and is not  subject to any claim,  restriction,  lien or other
                  encumbrance except as provided in this Agreement;

         e.       the Stock represents 29% of the total of 17,000,000  shares of
                  TranStar,  which are issued and  outstanding  and I may pledge
                  and grant a security  interest in the Stock without  obtaining
                  the approval of any other person, corporation, partnership, or
                  other entity, or any governmental authority,

                         STOCK PLEDGE AGREEMENT-RADLOVIC

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         f.       there are no options,  warrants,  privileges  or other  rights
                  outstanding  with  respect to any of the Stock  subject to the
                  terms of the Amended Stockholder's Agreement dated October 14,
                  2000.

PROHIBITION ON TRANSFER OF COLLATERAL

         I agree that I will not sell,  transfer,  assign or encumber  any of my
rights  in  any  of the  Collateral  or  grant  any  rights  in or to any of the
Collateral except pursuant to this Agreement.

FURTHER ASSURANCES

         I will,  at my  expense,  take or  cause to be taken  such  action  and
execute  and  deliver or cause to be  executed  and  delivered  such  additional
agreements and documents as you may request in connection with this Agreement or
any of  the  Collateral  or to  perfect  your  security  interest  in any of the
Collateral,  including, without limitation, delivering any Collateral to you and
executing and filing financing and other statements under the Uniform Commercial
Code in  effect  in any  state;  and I  hereby  authorize  you to sign  any such
agreement or document or  statement on my behalf and to file any such  statement
with or without my signature.

DEFAULT

         Upon a default  under  any of the  provisions  of the  Note,  or if any
warranty  by me  hereunder  is  incorrect,  or if I fail  to  perform  any of my
obligations  under this  Agreement  (any such  default or breach of  warranty or
failure being herein called "a default under this Agreement"),  you may, without
notice,  take such action as you deem advisable with respect to the  Collateral,
including,  without  limitation,  selling  any of the  Collateral  at  public or
private sale on such terms as you deem appropriate;  and you are also authorized
as my attorney-in-fact to endorse or otherwise effect the transfer of any of the
Collateral. At any such sale you may be the purchaser.

REMEDIES; ORDER OF PURSUIT

         You shall not be  required to resort to or pursue any of your rights or
remedies  under or with respect to any other  agreement or any other  collateral
before  pursuing any of your rights or remedies  under this  Agreement.  You may
pursue your rights and remedies in such order as you determine, and the exercise
by you of any right or remedy will not preclude your  exercising any other right
or remedy.

DELAY; WAIVER

         The failure or delay by you in exercising any of your rights  hereunder
or with  respect to the Note or any other  collateral  securing  the Note in any
instance shall not  constitute a waiver  thereof in that or any other  instance.
You may waive your rights only by an instrument in writing signed by you.

EXPENSES

         I agree to pay on demand all expenses of enforcing  the  provisions  of
this Agreement and your rights against any of the Collateral, including, without
limitation,  expenses  and fees of legal  counsel,  court  costs and the cost of
appellate proceedings.

WHERE TO MAKE PAYMENTS

         All payments under this Agreement  shall be made in lawful  currency of
the United States of America in immediately available funds at VERTICAL COMPUTER
SYSTEMS, INC., 6336 Wilshire Boulevard,  Los Angeles,  California,  90048, attn:
President,  as provided in the Security Agreement, or in such other manner or at
such other place as you shall designate in writing.

GOVERNING LAW; AGENT FOR SERVICE OF PROCESS

                         STOCK PLEDGE AGREEMENT-RADLOVIC

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         This  Agreement and your rights and my obligations  hereunder  shall be
governed by and construed in accordance with the law of the State of California.
I agree that any legal action or  proceeding  with respect to this  Agreement or
any of the  Collateral  may be brought in the courts of the State of  California
and of the United  States having  jurisdiction  in the County of Los Angeles and
State of California  and for the purpose of any such legal action or proceeding,
I hereby submit to the  non-exclusive  jurisdiction of such courts and agree not
to raise and waive any objection I may have based upon personal  jurisdiction or
the venue of any such  court or forum non  conveniens.  I agree not to bring any
action  or  other  proceeding  with  respect  to  this  Agreement  or  any of my
obligations  under this  Agreement  in any other court unless such courts of the
State of  California  and of the United States  determine  that they do not have
jurisdiction  in the matter.  For  purposes  of any  proceeding  involving  this
Agreement, I hereby irrevocably appoint Gary Blum, Esq., at 3278 Wilshire Blvd.,
Ste. 603 Los Angeles,  CA 90010,  my agent to receive  service of process for me
and on my behalf.

         I will at all times maintain an agent to receive  service of process in
California,  on my behalf with respect to this Agreement, and in the event that,
for any reason,  the agent named  above or any  successor  agent shall no longer
serve as my agent to receive service of process in California,  I shall promptly
appoint a successor and advise you thereof.

AMENDMENT

         This  Agreement may only be amended by an instrument in writing  signed
by you and me.

                                Very truly yours,

                                 PLEDGOR

                                  MIKE RADLOVIC

                                 -------------------------------------------
                                 By: Mike Radlovic, an individual

                                 PLEDGEE

                                 AGREED:
                                 VERTICAL COMPUTER SYSTEMS, INC.

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

                                 By: Richard Wade, President

                         STOCK PLEDGE AGREEMENT-RADLOVIC

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Exhibit 10.107

                                 April 11, 2003

Mr. Mike Radlovic President/CEO  TranStar, Inc. 6336 Wilshire Blvd. Los Angeles,
CA 90048

RE:  AMENDMENT TO TRANSTAR LICENSE, NOTE, AND AMENDED STOCKHOLDER AGREEMENT

Dear Mike,

This letter will  confirm the  material  terms of the mutual  agreement  between
TranStar  Systems,  Inc.  formally  known  as  Apollo  Industries,   Inc.,  (the
"Corporation"),  and Vertical Computer Systems,  Inc.  ("Vertical") to amend the
following agreements:

         o        Royalty Agreement, dated October 14, 2000
         o        Stock Purchase Agreement, October 14, 2000
         o        Amended Stockholder's Agreement, dated October 14, 2000
         o        $24,000  Promissory  Note,  dated  April 19,  2001  (including
                  security documents)
         o        $24,000 Promissory Note, dated May 8, 2001 (including security
                  documents)

Whereas, Vertical, Mike Radlovic ("Radlovic"), Walter J. Mix III, Gary Blum, The
Secura Group,  L.L.C., and J. Svigals are the stockholders  ("Stockholders")  of
the common  stock of the  Corporation  who  executed  the Amended  Stockholder's
Agreement.

In connection with the above agreements, the parties hereby agree as follows:

1. All  agreements  between the  Corporation  and Vertical shall be amended such
that all  references  to Apollo  Industries,  Inc.  shall be changed to TranStar
Systems, Inc. whenever reasonably required.

2. Vertical  shall waive all current  defaults on the $24,000  Promissory  Note,
dated April 19, 2001 (including underlying security documents),  and the $24,000
Promissory Note, dated May 8, 2001 (including security  documents),  hereinafter
collectively referred to as the "2001 Notes". The due date for the 2001 Notes is
extended to April 5, 2006. The Corporation and Vertical  acknowledge confirm and
agree that all  underlying  agreements  to the 2001 Notes,  including  the Stock
Pledge Agreement and the Loan and Security  Agreement shall remain in full force
and effect and that Vertical  shall retain the 1,000,000  shares of common stock
of the  Corporation  issued by the  Corporation as collateral  (the  "Collateral
Stock"). The Corporation expressly  acknowledges and warrants that the waiver of
default is expressly conditioned upon the Corporation's  continuing  obligations
under the 2001 Notes and underlying security  interests.  At Vertical's request,
the Corporation will execute any other documents  reasonably required to perfect
Vertical's  security  interest in any  collateral  shares issued for a breach of
either of the 2001 Notes.

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3. In consideration  of Vertical's  waiver of default on each of the 2001 Notes,
the  Corporation  shall  increase the royalty  rate on the Royalty  Agreement to
three percent (3%) of any Transaction  Fees and any other revenues  generated in
perpetuity;

4. Concurrently  with the execution of this Agreement,  Vertical is transferring
its remaining  ownership  interest in the  Corporation,  consisting of 3,000,000
shares of common  stock  originally  purchased  pursuant  to the Stock  Purchase
Agreement  dated October 14, 2000, to Radlovic in the capacity of an individual.
The Corporation and Vertical  hereby  acknowledge,  warrant and agree that, upon
such a transfer:

         a.  Vertical  shall  have no  further  rights  under  the  Stockholders
Agreement,  including without limitation,  any voting rights and any rights with
respect to appointment of directors of the Corporation;

         b.  Vertical  and any of  Vertical's  employees  or  agents  acting  as
Officers or Directors  of the  Corporation  hereby  resign,  affective  upon the
execution of this  agreement.  Vertical and the directors  appointed by Vertical
shall have no further obligations to the Corporation,  including any obligations
specifically  set  forth  in  the  Amended  Stockholders   Agreement,   and  the
Corporation  agrees to indemnify  Vertical and its  directors  for any past acts
that involved Vertical's rights and obligations to the Corporation;

         c. Vertical shall have no obligation to provide any consultant services
as specified in Article 3, Section 13 of the  Stockholders  Agreement  nor shall
either Vertical or the Corporation have any further  obligations under Article 5
of the Stockholder's Agreement.

5.  FURTHER  DOCUMENTS.  The  Corporation  shall  secure all  written  approvals
(including  any  Stockholders  who are not a party to the  Radlovic  purchase of
Vertical's shares) and corporate  resolutions  necessary to effectuate the terms
of this Agreement and shall provide  Vertical with executed  copies with respect
thereto.  The  parties  agree to  promptly  execute  any  further  documents  as
reasonably necessary to effectuate the terms of this Agreement.

6. AUTHORITY.  Each party hereto  represents and warrants that it has full power
and  authority to enter into this  Agreement  and to perform  this  Agreement in
accordance with its terms.

7. GOVERNING LAW. This Agreement shall be construed, interpreted and enforced in
accordance  with the laws of the State of California and shall be subject to the
exclusive jurisdiction and venue of the state and federal courts of Los Angeles,
California, to which the Parties irrevocably agree to submit to.

8.  SUCCESSORS AND ASSIGNS.  This Agreement  shall be binding upon, and inure to
the benefit of, the parties hereto and their respective successors and assigns.

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9.  SEVERABILITY.  In the event that any  provision of this  Agreement  shall be
invalid,  illegal  or  otherwise  unenforceable,   the  validity,  legality  and
enforceability  of the  remaining  provisions  shall  in no way be  affected  or
impaired thereby.

10.  AMENDMENT.  This  Agreement may be amended only in writing  executed by the
parties hereto.

11.  ATTORNEY'S  FEES. In the event of a dispute the  prevailing  party shall be
entitled to be reimbursed for its legal fees,  including attorney fees and court
costs, by the other party.

The  parties  agree to the terms of  agreement  effective  on the date first set
forth above:

ACCEPTED AND AGREED:

VERTICAL COMPUTER SYSTEMS, INC.

--------------------------
Richard Wade, President/CEO

TRANSTAR SYSTEMS, INC (the "Corporation")

--------------------------
Gary Blum, Secretary

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