Document:

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                                                                    EXHIBIT 10.6

                 [LETTERHEAD OF SUNTRUST EQUITABLE SECURITIES]

                                                                    June 1, 2001
                   Confirmation of Interest Rate Transaction
                   -----------------------------------------

      THIS LETTER AGREEMENT SHOULD BE REVIEWED, EXECUTED BY AN AUTHORIZED
         PERSON(S), AND RETURNED IMMEDIATELY VIA FAX TO 404-532-0514.
       (Please direct any questions to Ken Kuykendall at 404-532-0303.)

Larry Goddard
Chief Financial Officer
P.A.M. Transport, Inc.
Highway 412 West
297 Henri DeTonti Blvd.
Tontitown, Arkansas  72770
Ph#:  501-361-9111
Fax#: 501-361-5381

REF:  13210

Dear Mr. Goddard:

     The purpose of this letter agreement is to set forth the terms and
conditions of the Rate Transaction entered into between P.A.M. Transport, Inc.
("Counterparty" or "you") and SunTrust Bank ("SunTrust" or "us") on the Trade
Date specified below (the "Transaction").  SunTrust Equitable Securities
Corporation acts as agent on behalf of SunTrust with respect to this
Transaction.  This letter agreement constitutes a "Confirmation" as referred to
in the ISDA Master Agreement entered into by the parties hereto and dated
February 28, 2001.

     The definitions and provisions contained in the 1991 ISDA Definitions
published by the International Swap and Derivatives Association, Inc. ("ISDA"),
as amended and supplemented by the 1998 Supplement to the 1991 ISDA Definitions
(the "Definitions"), are incorporated by reference into this Confirmation.  In
the event of any inconsistency between the Definitions and this Confirmation,
this Confirmation shall govern.

     This Confirmation supplements, forms a part of, and is subject to the ISDA
Master Agreement, as amended and supplemented from time to time (the "Swap
Agreement"), between you and us.  All provisions contained or incorporated by
reference in the Swap Agreement shall govern this Confirmation except as
expressly modified below.

     Each party is hereby advised, and each such party acknowledges, that the
other party has engaged in (or refrained from engaging in) substantial
financial transactions and has taken other material actions in reliance upon
the parties' entry in the Transaction to which this Confirmation relates on the
terms and conditions set forth below.

     This Confirmation shall be governed by and construed in accordance with
the laws of the State of New York without reference to choice of law doctrine.

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                                                                          Page 2

1.   The terms of the particular Transaction to which this Confirmation relates
     are as follows:

     Type of Transaction:                              Swap Transaction

     Notional Amount:                                  $5,000,000.00

     Trade Date:                                       May 31, 2001

     Effective Date:                                   June 4, 2001

     Termination Date:                                 June 2, 2006, with
                                                       adjustment in accordance
                                                       with the Modified
                                                       Following Business Day
                                                       Convention (subject to
                                                       Section 2(d) below)
     Fixed Amounts:
     --------------

       Fixed Rate Payer:                               Counterparty

       Fixed Rate Payer Payment Dates:                 The 2/nd/ day of each
                                                       month, beginning July
                                                       2, 2001, through and
                                                       including the
                                                       Termination Date,
                                                       subject to adjustment in
                                                       accordance with the
                                                       Modified Following
                                                       Business Day Convention

       Fixed Rate:                                     4.83% per annum

       Fixed Rate Day Count Fraction:                  Actual/360

       Adjustment to Period End Dates:                 Applicable

     Floating Amounts:
     -----------------

       Floating Rate Payer:                            SunTrust

       Floating Rate Payer Payment Dates:              The 2/nd/ day of each
                                                       month, beginning July
                                                       2, 2001, through and
                                                       including the
                                                       Termination Date,
                                                       subject to adjustment in
                                                       accordance with the
                                                       Modified Following
                                                       Business Day Convention

       Floating Rate for initial Calculation Period:   4.0575% per annum

       Floating Rate Day Count Fraction:               Actual/360

       Designated Maturity:                            1 month

       Floating Rate Option:                           USD-LIBOR-BBA

       Spread:                                         Inapplicable

       Adjustment to Period End Dates:                 Applicable

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                                                                          Page 3

       Reset Dates:                                    The first day of each
                                                       Floating Rate Payer
                                                       Calculation Period

     Calculation Agent:                                SunTrust

     Business Days:                                    New York

2.   Other Provisions

     (a)     You agree to provide us (i) corporate resolutions, and (ii) a
     certificate of incumbency with respect to the individual(s) executing this
     Confirmation, both documents evidencing your authority to enter into this
     Transaction.  This provision (2)(a) shall constitute an additional
     Agreement for the purpose of Section 4 of the Swap Agreement.

     (b)     By signing this Confirmation, you acknowledge that you have
     received and understand the SunTrust Bank "Terms of Dealing for OTC Risk
     Management Transactions" and the "Risk Disclosure Statement for OTC Risk
     Management Transactions" (each attached hereto and incorporated by
     reference into this Confirmation).

     (c)     "Loan Agreement" shall mean each agreement, related by its terms
     to this Transaction, to which you (as borrower) and SunTrust (or one of
     its Affiliates) are or hereafter become parties (and to which other
     lenders may be parties) involving the making of loans, extensions of
     credit or financial accommodations thereunder or commitments therefor, in
     the form existing on the date when that agreement is executed and without
     regard to any termination or cancellation thereof, whether by reason of
     payment of all indebtedness incurred thereunder or otherwise, as such Loan
     Agreement may be amended, supplemented, otherwise modified, replaced, or
     substituted.

     (d)     SunTrust shall have the right, but not the obligation, to terminate
     ("Option to Terminate") this Transaction on June 2, 2003, subject to
     adjustment in accordance with the Modified Following Business Day
     Convention ("Optional Termination Date").  In order to exercise its Option
     to Terminate, SunTrust shall notify Counterparty two New York Business
     Days prior to the Optional Termination Date by telephone, which notice
     shall be deemed to be irrevocable and shall be confirmed in writing (which
     writing may be transmitted by facsimile) by SunTrust to Counterparty no
     later than the following Business Day.  Upon exercise by SunTrust of its
     Option to Terminate as aforesaid, all rights and obligations arising out
     of this Transaction following the Optional Termination Date shall be
     deemed to have been terminated and both parties shall be under no further
     liability to each other with respect to the Transaction. The amount
     payable on the Optional Termination Date will be the amount that would,
     had this Transaction not been terminated, have been paid by SunTrust or
     Counterparty as the case may be.

3.   Account Details

     Payment to Counterparty:

       Depository:                [PLEASE ADVISE]
       ABA #
       Favor of:
       Account #

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                                                                          Page 4

     Payments to SunTrust:

       SunTrust Bank
       ABA # 061000104
       FBO: Bond Wire Clearing
       Account # 9088-0000-95
       Attn: Financial Risk Management, Operations

4.   Offices

     (a)     The Office of Counterparty for the Transaction is its Tontitown
             office; and

     (b)     The Office of SunTrust for the Transaction is its Atlanta office.

     By signing below, you also acknowledge and agree that we have explained to
you the risks involved in this Transaction, which risks include but are not
limited to the following:

..    Market Risk: The risk that the Transaction may increase or decrease in
     value with a change in, among other things, interest rates or the yield
     curve; and

..    Liquidity Risk: The risk that the Transaction cannot be closed out or
     disposed of quickly at or near its value.

     You further acknowledge and agree that you understand these risks and the
Transaction as a whole, that you are capable of managing the risks associated
with this Transaction, that the risks involved in this Transaction are
consistent with your financial goals, policies and procedures, and risk
tolerance, and that you have determined that this Transaction is appropriate
for you.

     Please confirm that the foregoing correctly sets forth the terms of our
agreement by signing this copy of this Confirmation and immediately returning
it to SunTrust Equitable Securities Corporation via fax at the number indicated
on Page 1.

Very truly yours,          Accepted and Confirmed as of the date first written:

SUNTRUST BANK              P.A.M. TRANSPORT, INC.

By:/s/ Fred D. Woolf       By:/s/ Larry J. Goddard
   --------------------       -----------------------------
   Fred D. Woolf           Name:  Larry J. Goddard
   Vice President          Title:  Vice President - Finance<PAGE>

                                                                     EXHIBIT 4.1

                         VERTICAL HEALTH SOLUTIONS, INC.
               INCORPORATED UNDER THE LAWS OF THE STATE OF FLORIDA

NUMBER                                                           SHARES

                                                            SEE REVERSE SIDE FOR
                                                              CERTAIN DEFINITION
                                                               CUSIP 925336 10 7

     This Certifies That:

   is the owner of

    FULLY PAID AND NON-ASSESSABLE SHARES OF COMMON STOCK $.001 PAR VALUE, OF
                        VERTICAL HEALTH SOLUTIONS, INC.

transferable on the books of the Corporation in person or by attorney upon
surrender of this certificate duly endorsed or assigned. This certificate and
the shares represented hereby are subject to the laws of the State of Florida,
and to the Articles of Incorporation and Bylaws of the Corporation, as now or
hereafter amended. This certificate is not valid until countersigned by the
Transfer Agent.

     WITNESS the facsimile seal of the Corporation and the Facsimile signatures
of its duly authorized officers.

     Dated:

/s/STEPHEN WATTERS                                              /s/ BRIAN NUGENT
     Secretary                                                         President

 Countersigned:
     REGISTRAR AND TRANSFER COMPANY
          Transfer Agent and Registrar

     Authorized Officer

<PAGE>

     The following abbreviations, when used in the inscription on the face of
this certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

     TEN COM as tenants in common
     TEN ENT as tenants by the entireties
     JT TEN as joint tenants with the right of survivorship and not as tenants
          in common
     UNIF GIFT MIN ACT (Cust) Custodian (Minor)
          under Uniform Gifts to Minors Act (State)

     Additional abbreviations may also be used though not in the above list.

       For Value received, _________ hereby sell, assign and transfer unto

     PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE

(PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE)
_________________________ Shares of the stock represented by the within
Certificate, and do hereby irrevocably constitute and appoint
_________________Attorney to transfer the said Shares on the books of the within
named Corporation with full power of substitution in the premises.

Dated:

NOTICE: THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS
WRITTEN UPON THE FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION
OR ENLARGEMENT OR ANY CHANGE WHATSOEVER.

THE SIGNATURE TO THE ASSIGNMENT MUST CORRESPOND TO THE NAME AS WRITTEN UPON THE
FACE OF THIS CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT
OR ANY CHANGE WHATSOEVER, AND MUST BE GUARANTEED BY A COMMERCIAL BANK OR TRUST
COMPANY OR A MEMBER FIRM OF AN NATIONAL OR REGIONAL OR OTHER RECOGNIZED STOCK
EXCHANGE IN CONFORMANCE WITH A SIGNATURE GUARANTEE MEDALLION PROGRAM.

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