EXHIBIT 4.8

                                 PROMISSORY NOTE

Principal Amount:  $50,000                                        March 15, 2006

         TRADEQUEST INTERNATONAL, INC., a Nevada corporation ("Borrower"), for
value received hereby promises to pay to the order of Marvin Mermelstein
("Holder"), in the manner set forth below, the principal sum of Fifty Thousand
Dollars ($50,000) together with a premium payment to be comprised of 20,000
restricted common shares of Tradequest International, Inc. ("Tradequest") and a
Warrant to purchase 30,000 shares of common stock of Tradequest at an exercise
price of $1.50 per common share, with the principal balance and premium being
due and payable on or before May 15, 2005 (the "Maturity Date").

         1. Extension and Replacement. This Agreement hereby extends the
Maturity Date of the Promissory Note entered into by and amongst the parties
dated December 15, 2005 ("First Note") from March 15, 2006 to May 15, 2006. This
Agreement in effect replaces the First Note, which is hereby cancelled, and
replaced with this Agreement.

         2. Interest. Holder shall not have the right to receive interest on the
principal amount and premium amount.

         3. Payment of Principal and Premium. The aggregate outstanding
principal balance under this Note together with the premium amount shall be paid
to Holder no later than the Maturity Date, at the following address: 3500 West
Northshore Boulevard; Lincolnwood, IL 60712.

         4. Prepayment. The Borrower may prepay the principal balance and the
premium amount of this Note at any time without penalty.

         5. Events of Default and Remedies. In case one or more of the following
events ("Events of Default") (whatever the reason for such Event of Default and
whether it shall be voluntary or involuntary or be effected by operation of law
or pursuant to any judgment, decree or order of any court or any order, rule or
regulation of any administrative or governmental body) shall have occurred and
be continuing: (a) default in the payment of all or any part of the principal or
premium under this Note as and when the same shall become due and payable, at
the Maturity Date, by acceleration, by mandatory prepayment or otherwise; or (b)
failure on the part of the Borrower to observe or perform any material
representation, warranty, covenant or agreement on the part of the Borrower
contained in this Note for a period of 30 days after the date on which written
notice specifying such failure, stating that such notice is a "Notice of
Default" hereunder and demanding that the Borrower remedy the same, shall have
been given by registered or certified mail, return receipt requested, by the
Holder to the Borrower; or (c) the Borrower, pursuant to or within the meaning
of Title 11, U.S. Code or any similar federal or state law for the relief of
debtors (collectively, "Bankruptcy Law"), (i) commences a voluntary case or
proceeding, (ii) consents to the entry of an order for relief against it in an
involuntary case or proceeding, (iii) consents to the appointment of a custodian
of it or for all or substantially all of its property, (iv) makes a general
assignment for the benefit of its creditors, or (v) admits in writing its
inability to pay its debts as the same become due; or (d) a court of competent
jurisdiction enters an order or decree under any Bankruptcy Law that: (1) is for
relief against the Borrower in an involuntary case, (2) appoints a custodian of
the Borrower or for all or substantially all of the property of the Borrower, or

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(3) orders the liquidation of the Borrower, and any such order or decree remains
unstayed and in effect for 30 days; in each case where an Event of Default
occurs, the Holder, by notice in writing to the Borrower by registered or
certified mail, return receipt requested (the "Share Notice"), may take title of
the Shares as payment in full of all amounts owed under this Note. Upon the
occurrence of, and during the continuance of, an Event of Default, the principal
amount and premium amount shall bear interest at a rate of eighteen percent
(18%) per annum.

         As used herein, "Default" shall mean any event or condition which
constitutes an Event of Default or which upon notice, lapse of time or both
would, unless cured or waived, become an Event of Default.

         6. Costs of Collection. The Borrower shall reimburse the Holder, on
demand, for any and all costs and expenses, including reasonable attorneys' fees
and court costs, incurred by the Holder in collecting or otherwise enforcing
this Note or in exercising its rights as a secured creditor to the collateral,
or in attempting to do any of the foregoing.

         7. Powers and Remedies Cumulative; Delay or Omission Not Waiver of
Default. No right or remedy herein conferred upon or reserved to the Holder is
intended to be exclusive of any other right or remedy, and every right and
remedy shall to the extent permitted by law, be cumulative and in addition to
every other right and remedy given hereunder or now or hereafter existing at law
or in equity or otherwise.

         No delay or omission of the Holder to exercise any right or power
accruing upon any Default or Event of Default occurring and continuing as
aforesaid shall impair any such right or power or shall be construed to be a
waiver of any such Default or Event of Default or an acquiescence therein; and
every power and remedy given by this Note or by law may be exercised from time
to time, and as often as shall be deemed expedient, by the Holder.

         8. Waiver of Past Defaults. The Holder may waive any past Default or
Event of Default hereunder and its consequences. In the case of any such waiver,
the Borrower and the Holder shall be restored to their former positions and
rights hereunder, respectively; but no such waiver shall extend to any
subsequent or other Default or Event of Default of impair any right consequent
thereon.

         Upon any such waiver, such Default or Event of Default shall cease to
exist and be deemed to have been cured and not to have occurred, and any Default
or Event of Default arising therefrom shall be deemed to have been cured, and
not to have occurred for every purpose of this Note, and the Default interest
rate hereon shall not be deemed to have occurred; but no such waiver shall
extend to any subsequent or other Default or Event of Default or impair any
right consequent thereon.

         9. Successors and Assigns. The Borrower shall not consolidate or merge
with or into, or sell, lease, convey or otherwise dispose of all or
substantially all of its assets, in one transaction or a series of related
transactions, or assign any of its obligations under this Note without the prior
written consent of the Holder. The Holder may assign this Note, subject to
applicable securities laws, without the consent of the Borrower.

         10. Modification of Note. This Note may only be modified with the
written consent of the Holder and the Borrower.

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         11. Miscellaneous. This Note shall be governed by and be construed in
accordance with the laws of the State of New York without regard to the
conflicts of law rules of such state. The Borrower hereby waives presentment,
demand, notice, protest and all other demands and notices in connection with the
delivery, acceptance, performance and enforcement of this Note, except as
specifically provided herein. The section headings herein are for convenience
only and shall not affect the construction hereof.

         IN WITNESS WHEREOF, Borrower has caused this instrument to be duly
executed and delivered as of the date first set forth above.


                                        INCOMM HOLDINGS, CORP.


                                        By: /s/ Luis Alvarez
                                            ----------------
                                            Luis Alvarez
                                            Chairman & CEO

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