Document:

VT GAMING SERVICES, INC. D/B/A
                            DYNAMIC BIOMETRIC SYSTEMS

            1711 WEST GREENTREE DRIVE - SUITE 116 - TEMPE, AZ  85284

March 1, 2005

Sunset Financial Services, Inc.
PO BOX 4l9365
Kansas City, MO 64141

RE:     Selling Agreement

Ladies and Gentlemen:

     On December 31, 2004, VT Gaming Services, Inc., an Arizona corporation,
(the "Company") has acquired all the stock of DynaSig Corporation.  Immediately
thereafter, the Company started doing business as Dynamic Biometric Systems.  We
intend to formally change our name in the next few months.  To fund the further
development of this business we propose to offer and sell up to 1,000,000 shares
of Series A Preferred stock (the "Shares") for $1.00 per Share (the "Offering").
Each Share converts into approximately 9.52 common shares.  The Company hereby
confirms its agreement with you regarding the sale of the Shares, which is set
forth below (the "Agreement").

1.     APPOINTMENT OF PLACEMENT AGENT.  You are hereby appointed as the
Company's Placement Agent during the term of the Offering on a non-exclusive
basis.  You are entitled to solicit the services of other NASD broker-dealers or
re-allow a portion of the compensation set forth in Section 6 hereof in
connection with performing your services hereunder.

2.     SOLICITATION.  By accepting this Agreement, you are authorized to solicit
and sell, or cause to be solicited and sold, as the case may be, subscriptions
for said Shares in accordance with the terms and conditions of this Agreement,
the Company's private placement memorandum dated March 1, 2005 (the
"Memorandum") or any revisions, supplements or amendments thereof, and the
applicable federal and state securities laws and regulations in connection with
the Offering.  The Shares are only being offered and to be offered by you only
to "Accredited Investors" within the meaning of the requirements of Regulation D
promulgated under the Securities Act of 1933, as amended (the "Act").  You do
not guarantee that any sales of Shares will be made through any of your efforts.

3.     SOLICITATION MATERIAL.   No sales literature may be used by you other
than the Memorandum provided by the Company nor shall you publicly solicit in
any manner offers to purchase the Shares.  Before delivering any Memorandum to
any prospective investor, you shall have reasonable grounds to believe and in
fact believe that each such prospective investor is an Accredited Investor.  You
agree that you shall direct all prospective investors to forward all proceeds or
subscription agreements directly to you.

4.     SALE OF SHARES.   The Company reserves the right to refuse to accept any
and all subscriptions secured by you.  No subscription will be deemed to be
accepted by the Company until all necessary documents relating to such
subscription have been received by the Company and the Company has executed the
Subscription Agreements to indicate acceptance of the subscription.  All
prospective sales of Shares are subject to the sale of Shares to other persons
prior to the time when any proposed sale is submitted to the Company for
acceptance thereof.  Subscription proceeds will be held in an escrow account at
Wells Fargo Bank pending acceptance of such subscriptions by the Company.  There
is no minimum amount required for the Company to accept subscriptions.

5.     CLOSINGS.  Since there is no minimum subscription amount.  Closings under
the Offering may occur at any time at the discretion of the Company.

6.     AMOUNT OF SALES COMMISSIONS.

     A.     CASH COMPENSATION.  The Company shall pay you a sales and investment
banking commission of  10% on the funds raised.  Out of this fee you shall pay
your own due diligence expenses, the cost of your legal review of the Memorandum
and the other documents, and your travel and entertainment expenses.  The
Company has paid for the development of the Memorandum, including any related
legal expense.

     B.     WARRANTS.  As the Company accepts subscriptions, you shall earn
common stock warrants equal to 15% of the common shares into which the Shares
will convert or approximately 71,400 warrants for each $50,000 unit sold.  These
warrants expire two years from the closing date of the Offering and have an
exercise price of $.14 (the "Selling Agent Warrants").  The Selling Agent
Warrants have no registration rights.

7.     TIMING OF PAYMENT OF COMMISSIONS.  The cash portion of any Sales
Commission will be paid immediately upon the proceeds being transferred to the
Company.  The Selling Agent warrants will be issued when the offering is closed.

8.     RESERVATIONS.  The Company reserves the right to offer and sell the
Shares for its own account.

9.     EFFECTIVENESS OF AGREEMENT. This Agreement will become effective as of
the latest date set forth on the signature page of this agreement.

10.     INDEMNIFICATION AND CONTRIBUTION.

     A.     You hereby indemnify and hold harmless the Company and each person
who controls the Company within the meaning of Section 15 of the Securities Act
of 1933, as amended (the "1933 Act") against any and all losses, claims,
damages, liabilities and expenses (including reasonable costs of investigation
and counsel fees) caused by (i) any breach by you of the representations,
warranties or covenants by you contained in or made pursuant to this Agreement,
(ii) the failure by you to give, deliver or send a copy of the Memorandum as
appropriate to any person to whom the Shares are offered or sold or to offer or
sell the Shares in accordance with the provisions of and applicable rules,
regulations and published administrative interpretations under Section 4(2) of
the 1933 Act and the securities or blue sky laws of any jurisdiction in which
the Shares are offered or sold by or through you, (iii) any unauthorized
representations made by you or (iv) any unauthorized conduct which adversely
affects the availability of exemption from registration under the 1933 Act or
the rules and regulations there under or any provisions of the securities laws
of any jurisdiction.

     B.     The Company hereby indemnifies and holds harmless each person who
controls you (within the meaning of Section 15 of the 1933 Act) against any and
all losses, claims, damages, liabilities and expenses (including reasonable
costs of investigation and counsel fees) caused by (i) any breach by the Company
of the representations, warranties or covenants by the Company contained in or
made pursuant to this Agreement, (ii) any untrue statement of a material fact
contained in the Memorandum or in any amendment or supplement thereto or (iii)
any omission to state in the Memorandum any material fact required to be stated
therein or necessary to make the statements therein, in light of the
circumstances under which they are made, not misleading; provided, however, that
the Company shall not be responsible for, nor does the Company indemnify or hold
harmless you or your controlling persons against any losses, claims, damages,
liabilities or expenses arising out of or resulting from the offer or sale of
the Shares to any person who was not given, delivered or sent a copy of the
Memorandum as appropriate, or the failure by you to offer and sell the Shares in
accordance with the provisions of and applicable rules, regulations and
published administrative interpretations under Section 4(2) of the 1933 Act and
rules there under and the securities or blue sky laws of any jurisdiction in
which the Shares are offered or sold by or through you.

     C.     Promptly after receipt by an indemnified party under this Section of
notice of the commencement of any action, such indemnified party will, if a
claim in respect thereof is to be made against the indemnifying party under this
Section, notify the indemnifying party in writing of the commencement thereof.
However, omission to notify the indemnifying party will not relieve the
indemnifying party from any liability which it may have to any indemnified party
otherwise than under this Section.  In case any such action is brought against
any indemnified party, and it notifies the indemnifying party of the
commencement thereof; the indemnifying party will be entitled to participate in
and, to the extent that it may wish, jointly with any other indemnifying party,
similarly notified, to assume the defense thereof, with counsel satisfactory to
such indemnified party, under joint control thereof over the defense in
conjunction with the indemnified party and after notice from the indemnifying
party to such indemnified party, of its election so to assume the defense
thereof; the indemnifying party will not be liable to such indemnified party
under this Section for any legal or other expenses subsequently incurred by such
indemnified party in. connection with the defense thereof other than reasonable
costs of investigation and the indemnified party may, but shall not be obligated
to, participate in the defense of its own expense with its own counsel.

11.     REPRESENTATIONS AND WARRANTIES OF PLACEMENT AGENT.  In addition to
meeting any conditions specified elsewhere herein, you represent and warrant to
the Company that:

     A.     You are duly registered pursuant to the provisions of the Securities
Exchange Act of 1934 as a dealer and/or under the Investment Advisers Act of
1940 as an investment adviser and are duly registered as a broker-dealer and/or
investment adviser in those states where required and you agree to comply with
all statutes and other requirements applicable to you as a broker-dealer and/or
investment adviser pursuant to those registrations and are legally authorized
under all applicable laws to engage in the activities contemplated hereby and
receive compensation therefore as herein contemplated; and

     B.     You are a member in good standing of the National Association of
Securities Dealers, Inc.

     C.     This Agreement, when accepted and approved by you, will be duly
authorized, executed and delivered by you and is a valid and binding agreement
on your part.

12.     TERMINATION.  This Agreement will terminate on July 31, 2005.
Termination of the Offering shall likewise cause the termination of this
Agreement.  Upon such termination you shall continue to have the right to
receive compensation hereunder for Shares sold by you, for which you have not
yet been compensated.

13.     REPRESENTATIONS AND INDEMNITIES TO SURVIVE DELIVERY. The indemnities,
agreements, representations, warranties, and other statements by you set forth
in or made in writing pursuant to this Agreement will remain in full force and
effect, regardless of any investigation made by or on behalf of the Company, or
any controlling person and will survive delivery of and payment for the Shares,
and the Company, or any controlling person, as the case may be, shall be
entitled to the benefit of the indemnity agreements.

14.     GOVERNING LAW.  This Agreement will be governed by and construed in
accordance with the laws of the State of Arizona.

15.     NOTICES.  All communications hereunder will be in writing sent by
certified, first class mail, return receipt requested each party at the address
set forth below. Notices will be effective only when received or when first
attempted to be delivered by the mails. Addresses for notice may be changed by
notice to the other parties hereunder.

16.     MODIFICATIONS AND WAIVERS.  No modification or waiver of any term hereof
shall be effective unless in writing, signed by the patty to be charged.

17.     MULTIPLE COUNTERPARTS.  This Agreement is made, and may be executed, in
multiple counterparts, each of which shall constitute an original hereof.

18.     ASSIGNABILITY.   This Agreement shall he binding upon and inure to the
benefit of the parties hereto and their respective heirs and successors but
shall not be assignable by a patty without the prior written consent of the
other patty.

If the foregoing is in accordance with your understanding of our agreement,
please sign and return to us the enclosed duplicate hereof; whereupon it will
become a binding agreement between us in accordance with its terms.

Very truly yours,

VT Gaming Services, Inc.

     /s/ Michael S. Williams

By:     Michael S. Williams
its:     Chairman of the Board               date:          3/17/05
                                                            -------

SUNSET FINANCIAL SERVICES, INC.

By:          /s/ Kim Kirkman
             ---------------

Title:          AVP                         date:          3/16/05
                ---                                        -------AMENDMENT TO SECURED LINE OF CREDIT

     THIS AMENDMENT TO SECURED LINE OF CREDIT AGREEMENT ("Agreement") is made as
of this 1st day of June 2005 by and between Dynasig Corporation, an Arizona
corporation ("Borrower") and Visitalk Capital Corporation dba Aztore Capital, a
Nevada corporation ("Lender").  Borrower's address for purposes of this
Agreement is 14647 S. 50th Street, Suite 130, Phoenix, AZ  85044 and Lender's
address for purposes of this Agreement is 14647 South 50th Street, Suite 130,
Phoenix, AZ  85044.

                                    RECITALS

A.     WHEREAS, Borrower has executed and delivered to Lender an Agreement for a
Secured Line of Credit dated December 27, 2004 (the "Original LOC Agreement")
which is attached as Exhibit A and made part hereof.

B.     WHEREAS, the Original LOC Agreement established a Line of Credit of
$100,000.

C.     WHEREAS, due to Borrower's current circumstances and business plans,
Lender expects to provide more funding to Borrower and Borrower and Lender
desire to increase the maximum line of credit amount as agreed to in Section Two
of the Original LOC Agreement to cover such requirements.

     NOW THEREFORE, in consideration of the Borrower's and the Lender's mutual
promises and other good and valuable consideration, the receipt and sufficiency
of which are hereby acknowledged, the Borrower and Lender, intending to be
legally bound, do hereby acknowledge the sufficiency of the Recitals and
covenant and agree as follows:

                                   AGREEMENTS

                ARTICLE I - INCREASE IN THE LINE OF CREDIT AMOUNT

1.1     Borrower and Lender agree that the line of credit amount referenced in
Section two of the Original LOC Agreement shall be increased from $100,000 to
$350,000.

1.2     Section 8, paragraph 14 of the Original LOC Agreement and Section 12 of
the Security Agreement entered into contemporaneously with the Original LOC
Agreement (the "Security Agreement") regarding assignments is hereby modified to
allow the Lender or the Secured Party, as the case may be, to assign any of its
Notes obtained pursuant to the Original LOC Agreement, as amended herein, or its
rights under the Security Agreement.

1.3     All other Agreements in the Original LOC Agreement shall remain the
same.

                           ARTICLE II - MISCELLANEOUS

2.1     Controlling Law.  This Agreement and all questions relating to its
validity, interpretation, performance and enforcement will be governed by, and
construed, interpreted and enforced in accordance with, the laws of the State of
Arizona, notwithstanding any other conflict of law rules to the contrary.  The
parties hereto hereby agree that any action brought by any party hereto against
the other party hereto in connection with any rights or Post-Petition Claims
arising out of this Agreement or any transaction contemplated hereby will be
instituted properly in a federal or state court of competent jurisdiction with
venue only in the County of Maricopa, State of Arizona, or in the Federal
District for Arizona.  The Parties each hereby agree to submit personally to the
jurisdiction of a court of competent subject matter jurisdiction located in such
County or Federal District.

2.2     Equitable Remedies.  The parties hereto hereby agree that the remedies
at law may be inadequate to protect against an Event of Default, and therefore,
the parties hereto hereby agree and consent to the granting of injunctive relief
or other forms of equitable relief by a court of competent jurisdiction or a
similar judicial body, whether temporary, preliminary or final, whether or not
actual damages can be shown.

2.3     Assignment.  This Agreement may be assigned, in whole or in part,
without the express prior written consent of the other Party.

2.4     Notices.  Unless otherwise specifically stated herein, all notices,
payments, requests, demands and other communications required or permitted under
this Agreement will be in writing and will be deemed to have been duly given,
made and received when delivered against receipt, or 24 hours after being sent
by fax or 72 hours after being sent by registered or certified mail, postage
prepaid.

2.5     Terms.  Words not otherwise expressly defined herein will have their
everyday meaning; provided, however, no meaning will be given to a word that is
inconsistent with the intent of the parties hereto.

2.6     Entire Agreement.  This Agreement contains the entire understanding and
agreement between the parties hereto with respect to the liabilities in question
and supersedes all prior agreements or understandings, written or oral, between
the parties hereto with respect to the liabilities.  This Agreement may not be
modified or amended except by a written instrument signed by the parties hereto.

2.7     Provisions Severable.  The provisions of this Agreement are independent
of and severable from each other, and no provision will be affected or rendered
invalid or unenforceable by virtue of the fact that for any reason any other or
others of them may be invalid or unenforceable in whole or in part.  Further, if
a court of competent jurisdiction determines that any provision of this
Agreement is invalid or unenforceable as written, the court may interpret,
construe, rewrite or revise such provision, to the fullest extent allowed by
law, so as to make it valid and enforceable, consistent with the intent of the
parties hereto.

2.8     Construction.  The parties hereto hereby acknowledge and agree that each
party has participated in the drafting of this Agreement and that this Agreement
has been, to the extent it was felt necessary, reviewed by the respective legal
counsel for the parties hereto and that the rule of construction to the effect
that any ambiguities are to be resolved against the drafting party will not be
applied to the interpretation of this Agreement.  No inference in favor of, or
against, any party will be drawn from the fact that one party has drafted any
portion hereof.

2.9     Advice of Counsel.  Each Party hereby acknowledges that they are
entitled to and have been afforded the opportunity to consult legal counsel of
their choice regarding the terms and conditions and legal effects of this
Agreement, as well as the advisability and propriety thereof.  Each party hereby
further acknowledges that having so consulted with legal counsel of their
choosing or having chosen not to consult, hereby waives any right to such legal
representation or effective representation and any right to raise or rely upon
the lack of representation or effective representation in any future proceedings
or in connection with any future claim.

2.10     Attorney Fees.  In the event of any claim or controversy between the
parties hereto relating to this Agreement, or the breach of this Agreement, and
action by one party hereto is taken against the other party, the prevailing
party in such action will be entitled to recover from the other party its
expenses, including reasonable attorneys fees, incurred in taking or defending
such action.

2.11     Recitals, Schedules and Exhibits.  The Recitals, Schedules and Exhibits
referred to in this Agreement shall be construed with and are an integral part
of this agreement to the same extent as if the same had been set forth verbatim
herein.

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed by their duly authorized officers as of the date first above
written.

DynaSig Corporation ("Borrower")          Visitalk Capital Corporation
                                          dba Aztore Capital ("Lender")

/s/ Richard C. Kim                         /s/ Lanny R. Lang
By:  Richard C. Kim                        By:  Lanny R. Lang
-------------------                        ------------------
Its:   President                           Its:  Secretary and Treasurer

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