Document:

<PAGE>

                                                                     EXHIBIT 4.8

This Debenture and the shares of Common Stock issuable upon conversion hereof
------------------------------------------------------------------------------
have not been registered under the Securities Act of 1933 (the "Act") or under
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any applicable state securities laws. This Debenture may not be offered for
------------------------------------------------------------------------------
sale, sold, transferred, assigned, pledged, or otherwise disposed of except to
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the estate of heirs of the holder by will or the laws of intestate succession.
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The shares issuable upon conversion hereof may not be offered for sale, sold,
------------------------------------------------------------------------------
transferred, assigned, pledged or otherwise disposed of without registration
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under the Act and any applicable satisfactory (both opinion and counsel to be
------------------------------------------------------------------------------
satisfactory) to XCEL Management, Inc. that registration is not required.
-------------------------------------------------------------------------

                             CONVERTIBLE DEBENTURE
                             ---------------------

$325,000 PRINCIPAL AMOUNT - 10% ANNUAL INTEREST AT BANK OF AMERICA PRIME RATE +
-------------------------------------------------------------------------------
                           1/2% ON DATE OF ISSUANCE
                           ------------------------

Date of Issuance:   June 16, 2000

Holder:             TCA Investments, Inc.

1.   Interest, Conversion Rate and Prepayments

     XCEL Management, Inc., (the "Company"), a Utah corporation, promises to pay
to the Holder named above the principal amount shown above, and interest on the
principal amount of this Debenture, which interest is payable only in shares of
the Company's Common Stock, $0.001 par value ("Common Stock") at a conversion
rate of $1.42 per share) at the rate per annum shown above.  The Company will
pay accrued interest on the outstanding principal amount once annually
commencing at the end of one (1) year from the date of issuance shown above and
will pay the entire outstanding principal amount at the end of two (2) years
from the date of issuance shown above ("Due Date").  Interest on the Debenture
will accrue from the date of issuance.  Interest will be computed on the basis
of a 365-day year.  The Company shall be entitled to pre-pay the amounts
outstanding under this Debenture, in whole or in part, without penalty.

2.   Method of Payment

     The Company will pay principal and interest on the Debenture to the person
who is registered as the Holder of Debenture at the close of business
<PAGE>

on the Due Date. Holder must surrender the Debenture to the Company to collect
the principal payment. The Company will pay principal in money of the United
States that at the time of payment is legal tender for payment of public and
private debts. However, the Company may pay principal by check payable in such
money. It may mail said check to a Holder's address as shown on the books and
records of the Company at that time.

3.   Conversion

     A holder of a Debenture may convert it into Common Stock of the Company at
any time on or after November 1, 2000 ("Conversion Date") and before the close
of business on the Due Date.  The initial conversion price is $1.42 per share.
To determine the number of shares issuable upon conversion of a Debenture, the
principal amount to be converted shall be divided by the conversion price in
effect on the conversion date.  On conversion, the outstanding principal amount
will be adjusted hereunder and interest will continue to accrue only on such
amount.  The Company will deliver a check for any fractional share.

     To convert, a Debenture Holder must (1) complete and sign the conversion
notice attached to this Debenture, (2) surrender the Debenture to the Company,
(3) furnish appropriate endorsements and transfer documents if required by the
Company, and (4) pay any transfer or similar tax if required.  A holder may
convert a portion of a Debenture if the portion is $10,000 or a whole multiple
of $10,000.

     The conversion price will be adjusted for stock dividends, mergers,
consolidations, stock splits or distributions on Common Stock; subdivisions,
combinations or certain reclassifications of Common Stock; distribution to all
holders of Common Stock of certain rights to purchase such Common Stock at less
than the current market price at the time; distributions to such holders of
assets or debt of the Company or certain rights to purchase debt of the Company
(excluding cash dividends or distributions from current retained earnings).  If
the Company is a party to a consolidation or merger or a transfer or lease of
all or substantially all of its assets, the right to convert a Debenture into
Company Common stock may be changed into a right to convert it into stock,
debentures, cash or other assets of the Company or of the entity resulting or
surviving such merger or to which such assets shall have been sold, leased or
transferred.  If the Company completes its contemplated reorganization pursuant
to which each holder of Common Stock will receive two (2) shares of common stock
in a newly formed Delaware entity for every one (1) share of Common Stock held
in the Company, the conversion price hereunder will automatically be adjusted to
$0.71 on and after such reorganization.

                                       2
<PAGE>

4.   Denominations, Transfer, Exchange

     The transfer of the Debenture must be registered with the Company or a
Trustee.  The Company may require a Holder, among other things, to furnish
appropriate endorsements and transfer documents and to pay transfer taxes and
fees required by law, if any.

5.   Persons Deemed Owners

     The registered holder of a Debenture may be treated as its owner for all
purposes.

6.   Successor Corporation

     When a successor corporation assumes all the obligations of its predecessor
under the Debenture, the predecessor corporation will be released from those
obligations.

7.   Registration Rights

     The Holders of this Debenture have been granted certain registration rights
as set forth the Subscription Agreement between the Holder and the Company of
even date herewith, and such Subscription Agreement shall be deemed to be
incorporated by reference herein.  The Holders shall be entitled to exercise
such registration rights prior to the Conversion Date as set forth in the
Subscription Agreement.

8.   Defaults and Remedies

     An Event of Default is: default in payment of interest or principal on the
Debenture; failure by the Company for thirty (30) days after notice to it to
comply with any of  its other agreements in the Debenture; the making  of an
assignment for the benefit of the Company's creditors; the filing of a voluntary
or involuntary petition for or the appointment of a receiver of the Company's
property; the filing of a voluntary petition by or an involuntary petition
against the Company under any provision of the federal Bankruptcy Act; the
dissolution of the Company's business.  If an Event of Default occurs and is
continuing, the Holder may declare the Debenture to be due and payable
immediately.

9.   No Recourse Against Others

     A director, officer, employee, agent or stockholder, as such, of the
Company shall not have any liability for any obligations of the Company

                                       3
<PAGE>

under the Debenture or for any claim based on, in respect of, or by reason of
such obligations or their creation. The Debenture Holder, by accepting this
Debenture, waives and releases all such liability. The waiver and release are
part of the consideration for the issue of the Debenture.

10.  Authentication

     The Debenture shall not be valid until authenticated by the manual
signature of an officer of the Company.

11.  Abbreviations

     Customary abbreviations may be used in the name of a Debenture Holder or an
assignee, such as TEN COM (tenants in common), TEN ENT (tenants by the
entireties), JT TEN (joint tenants with right of survivorship and not as tenants
in common), CUST (Custodian), and U/G/M/A (Uniform Gifts to Minor Acts).

                         XCEL Management, Inc.

                         By:_______________________________
                             John P. Gorst
                             Chief Executive Officer

                                       4
<PAGE>

                                  EXHIBIT "A"
                                  -----------

                              NOTICE OF CONVERSION
                    (To be executed by Holder to convert the
                         Debenture in whole or in part)

XCEL Management, Inc.
1101 Broadway Plaza
Tacoma, Washington  98402

     Re:  Convertible Debenture dated June 16, 2000 to TCA Investments, Inc.

Dear Sir or Madam:

     The undersigned holder irrevocably elects to convert the Debenture of XCEL
Management, Inc. to purchase ______ shares of Common Stock of XCEL Management,
Inc. (the "Company") and hereby makes payment of the amount of $_______ in the
manner described below, representing the conversion price per share of Common
Stock multiplied by the number of shares of Common Stock to be purchased
pursuant to this conversion.

                                        By:_____________________________

                                        Its:____________________________

$_________ cash
$_________ certified or bank cashier's check
$_________ wire transfer

                              Exhibit "A", Page 1

                                       5
<PAGE>

                              AMENDMENT NO. 1 TO
                             CONVERTIBLE DEBENTURE

     THIS AMENDMENT NO. 1 TO CONVERTIBLE DEBENTURE (this "Amendment") is
effective as of August 31, 2000 by and between Insynq, Inc., a Delaware
corporation (the "Company"), and TCA Investments, Inc. ("Holder").

                              W I T N E S S E T H

     WHEREAS, the parties have executed that certain Convertible Debenture as of
June 16, 2000; and

     WHEREAS, the parties have deemed it to be in their mutual best interests to
amend the Convertible Debenture to reflect a new conversion date to purchase
common stock, $0.001 par value per share (the "Common Stock"), of the Company
thereunder.

     NOW, THEREFORE, in consideration of the foregoing, and of the mutual
covenants hereinafter contained, and of other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

     The Convertible Debenture is hereby amended to reflect a new exercise date
of November 15, 2000, pursuant to which Holder shall be entitled to convert the
debenture reflected by the Convertible Debenture to purchase Common Stock.

     IN WITNESS WHEREOF, the parties have executed this Amendment effective as
of the date set forth above.

                         TCA INVESTMENTS, INC.

                         By:  ___________________________________
                         Name:  _________________________________
                         Title:  ________________________________

                         INSYNQ, INC.

                         By:  ___________________________________
                         Name:  _________________________________
                         Title:  ________________________________
<PAGE>

                                 INSYNQ, INC.
                              1101 Broadway Plaza
                               Tacoma, WA  98401

September 5, 2000

     RE:  Extension of the filing by Insynq, Inc. (the "Company") of the
          Registration Statement on Form SB-2 (the "Registration Statement")

To the parties attached on Exhibit A hereto:
                           ---------

     Due to the circumstances requiring us to file a Form 12b-25 to extend the
filing of our Annual Report on Form 10-KSB, and the need for additional time
after the filing of the 10-KSB for our internal accounting and financial group
to verify the information contained in the Registration Statement, we request
that you, the undersigned stockholder of the Company, agree to extend the filing
date of the Registration Statement which is required under your applicable
Registration & Repurchase Agreement to September 25, 2000.

     If you agree to this extension, please sign below and return this executed
letter to Lisa A. Genecov, Locke Liddell & Sapp LLP, 2200 Ross Avenue, Suite
2200, Dallas, Texas, 75201.

                                Best Regards,

                                //s//

                                John P. Gorst
                                President and Chief Executive Officer

The undersigned hereby consents to extend the filing of the Registration
Statement to September 25, 2000.

                                TCA Investments, Inc.
                        -----------------------------------------------------
                        By:     /s/ Frank Fisher
                            -------------------------------------------------
                        Name:       Frank Fisher
                              -----------------------------------------------
                        Title:
                               ----------------------------------------------
<PAGE>

                              AMENDMENT NO. 2 TO
                             CONVERTIBLE DEBENTURE

         THIS AMENDMENT NO. 2 TO CONVERTIBLE DEBENTURE (this "Amendment") is
 effective as of September 14, 2000 by and between Insynq, Inc., a Delaware
 corporation (the "Company"), and TCA Investments, Inc. ("Holder").

                              W I T N E S S E T H

         WHEREAS, the parties have executed that certain Convertible Debenture
 as of June 16, 2000; and

         WHEREAS, the parties have deemed it to be in their mutual best
interests to amend the Convertible Debenture to reflect a new conversion date to
purchase common stock, $0.001 par value per share (the "Common Stock"), of the
Company thereunder.

         NOW, THEREFORE, in consideration of the foregoing, and of the mutual
covenants hereinafter contained, and of other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

         The Convertible Debenture is hereby amended to reflect a new conversion
date of December 1, 2000, pursuant to which Holder shall be entitled to convert
the debenture reflected by the Convertible Debenture to purchase Common Stock.

         IN WITNESS WHEREOF, the parties have executed this Amendment effective
as of the date set forth above.

                                TCA INVESTMENTS, INC.

                                By:/s/ [ILLEGIBLE]
                                   ------------------------------------
                                Name:  ________________________________
                                Title:  _______________________________

                                INSYNQ, INC.

                                By:  __________________________________
                                Name:  ________________________________
                                Title:  _______________________________

<PAGE>

                              AMENDMENT NO. 3 TO
                             CONVERTIBLE DEBENTURE

         THIS AMENDMENT NO. 3 TO CONVERTIBLE DEBENTURE (this "Amendment") is
effective as of October 1, 2000 by and between Insynq, Inc., a Delaware
corporation (the "Company"), and TCA Investments, Inc. ("Holder").

                              W I T N E S S E T H

         WHEREAS, the parties have executed that certain Convertible Debenture
as of June 16, 2000; and

         WHEREAS, the parties have deemed it to be in their mutual best
interests to amend the Convertible Debenture to reflect a new conversion date to
purchase common stock, $0.001 par value per share (the "Common Stock"), of the
Company thereunder.

         NOW, THEREFORE, in consideration of the foregoing, and of the mutual
covenants hereinafter contained, and of other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

         The Convertible Debenture is hereby amended to reflect a new exercise
date of December 28, 2000, pursuant to which Holder shall be entitled to convert
the debenture reflected by the Convertible Debenture to purchase Common Stock.

         IN WITNESS WHEREOF, the parties have executed this Amendment effective
as of the date set forth above.

                                 TCA INVESTMENTS, INC.

                                 By:  /s/ F.C. Fisher Jr.
                                     -----------------------------------
                                 Name: _________________________________

                                 Title:    President
                                       ---------------------------------

                                 INSYNQ, INC.

                                 By: ___________________________________

                                 Name: _________________________________

                                 Title:  _______________________________

<PAGE>

                              AMENDMENT NO. 4 TO
                             CONVERTIBLE DEBENTURE

     THIS AMENDMENT NO. 4 TO CONVERTIBLE DEBENTURE (this "Amendment") is
effective as of October 28, 2000 by and between Insynq, Inc., a Delaware
corporation (the "Company"), and TCA Investments, Inc. ("Holder").

                              W I T N E S S E T H

     WHEREAS, the parties have executed that certain Convertible Debenture as of
June 16, 2000; and

     WHEREAS, the parties have deemed it to be in their mutual best interests to
amend the Convertible Debenture to reflect a new conversion date to purchase
common stock, $0.001 par value per share (the "Common Stock"), of the Company
thereunder.

     NOW, THEREFORE, in consideration of the foregoing, and of the mutual
covenants hereinafter contained, and of other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

     The Convertible Debenture is hereby amended to reflect a new exercise date
of January 28, 2001, pursuant to which Holder shall be entitled to convert the
debenture reflected by the Convertible Debenture to purchase Common Stock.

     IN WITNESS WHEREOF, the parties have executed this Amendment effective as
of the date set forth above.

                                   TCA INVESTMENTS, INC.

                                   By: /s/ Frank Fisher
                                      -------------------------
                                   Name:   Frank Fisher
                                         ----------------------
                                   Title: President
                                         ----------------------

                                   INSYNQ, INC.

                                   By:   /s/ John P. Gorst
                                      -------------------------
                                   Name:     John P. Gorst
                                         ----------------------
                                   Title:       CEO
                                         ----------------------<PAGE>

                                                                     EXHIBIT 4.9

                              WARRANT TO PURCHASE

                                COMMON STOCK OF

                             XCEL MANAGEMENT, INC.

                    ______________________________________

                             Dated:  July 17, 2000

______________________________________________________________________________

NEITHER THE SECURITIES REPRESENTED BY THIS WARRANT NOR THE SECURITIES ISSUABLE
UPON EXERCISE HEREOF HAVE BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, OR THE SECURITIES LAWS OF ANY STATE; THEREFORE, THIS WARRANT AND THE
SECURITIES ISSUABLE UPON EXERCISE HEREOF, IF ANY, MAY NOT BE SOLD OR TRANSFERRED
EXCEPT UPON SUCH REGISTRATION OR UPON DELIVERY TO THE CORPORATION OF AN OPINION
OF COUNSEL OR OTHER EVIDENCE SATISFACTORY TO THE CORPORATION THAT REGISTRATION
IS NOT REQUIRED FOR SUCH SALE OR TRANSFER.

                                          Garnier Holdings, Ltd./$4.00 per share
<PAGE>

                                                  Warrant to Purchase
                                                  162,500 Shares of
                                                  Common Stock, Subject to
                                                  Adjustment as herein provided

                        WARRANT TO PURCHASE COMMON STOCK

                             XCEL MANAGEMENT, INC.

                    Dated as of the 17th day of July, 2000.

     WHEREAS, the undersigned desires to acquire for investment purposes this
Warrant to Purchase Common Stock providing for the acquisition of 162,500 shares
of common stock, $0.001 par value per share (the "Common Stock"), of XCEL
Management, Inc. (the "Company"), subject to adjustment as provided herein;

     WHEREAS, the Company has executed that certain Promissory Note in favor of
the undersigned dated July 17, 2000 (the "Note");

     WHEREAS, there are currently outstanding 9,915,424 shares of Common Stock
of the Company;

     WHEREAS, the Company is contemplating a reorganization and recapitalization
(the "Contemplated Reorganization") whereby each holder of outstanding Common
Stock of the Company will receive two (2) shares of Common Stock in a newly
formed Delaware entity (the "Surviving Corporation") for every one (1) share of
Common Stock currently held; and

     WHEREAS, after the completion of the Contemplated Reorganization, the
shares subject to this Warrant shall represent 325,000 shares of the Surviving
Corporation.

     NOW, THEREFORE, for and in consideration of past service and of the mutual
covenants, representations, warranties and agreements contained herein, this is
to certify that:

     1.  The undersigned or his permitted and registered assigns ("Holder"), is
entitled to purchase from time to time, subject to the provisions and conditions
herein, not later than the termination of the Exercise Period of this Warrant to
Purchase Common Stock (this "Warrant") as set forth in Paragraph 4 below, an
                                                       -----------
aggregate of One Hundred Sixty-Two Thousand Five Hundred (162,500) shares of
Common Stock, at the Exercise Price per share set forth in paragraph 2(c)
                                                           --------------
herein, and upon such purchase to receive a certificate or certificates
representing such shares of Common Stock.  The number of shares of Common Stock
to be received upon the exercise of this Warrant may be adjusted from time to
time as hereinafter set forth.

                                      -2-
<PAGE>

     2.  Defined Terms. As used in this Warrant, the following capitalized terms
         -------------
shall have the meanings respectively assigned to them below, which meanings
shall be applicable equally to the singular and plural forms of the terms so
defined.

         (a) "Business Day" shall mean any day except a Saturday, Sunday or
              ------------
     other day on which commercial banks in the State of Texas are authorized or
     required by law to close.

         (b) "Exercise Period" means the period commencing on the date of this
              ---------------
     Warrant and terminating at 5:00 p.m., Tacoma, Washington time, on the fifth
     (5th) anniversary following the Registration Date or, in the event that the
     fifth anniversary of the Registration Date is not a Business Day, the
     Business Day next following.

         (c) "Exercise Price" shall mean a strike price of $4.00 per share. If
              --------------
     the Note referenced in the recitals hereunder is not paid by 5:00 p.m.,
     Central Standard Time, on August 17, 2000, the Exercise Price will decrease
     by one-half which, after giving effect to the Contemplated Reorganization,
     would be $1.00, and on and after each additional ten (10) day period that
     the Note remains unpaid, the Exercise Price will decrease by an additional
     ten percent (10%). By way of example only, if the Note is not paid in full
     until August 31, 2000, the Exercise Price will be $0.90 (after giving
     effect to the Contemplated Reorganization).

         (d) "Holder" shall mean the Person(s) then registered as the owner of
              ------
     the Warrant or Warrant Securities, as the case may be, on the books and
     records of the Company.

         (e) "Person" shall mean any natural person, corporation, limited
              ------
     partnership, limited liability company, general partnership, joint venture,
     association, company, or other organization, whether or not a legal entity,
     and any government agency or political subdivision thereof.

         (f) "Warrant Securities" shall mean the shares of Common Stock (or
              ------------------
     other securities) of the Company purchasable or purchased from time to time
     under this Warrant or acquired upon any transfer of any such shares,
     together with all additional securities received in payment of dividends or
     distributions on or splits of those securities or received as a result of
     the adjustments provided for in Paragraph 6 hereof.
                                     -----------

     3.  Exercise of Warrant.  Subject to and in accordance with the
         -------------------
provisions and conditions hereof, this Warrant may be exercised from time to
time in whole or in part during the term of this Warrant as set forth in
Paragraph 5 hereof.
-----------

     4.  Term of Warrant. The term of this Warrant shall commence on the date
         ---------------
hereof and shall expire on the exercise in full of this Warrant by Holder or at
5:00 p.m. Tacoma, Washington time on the termination of the Exercise Period.

     5.  Manner of Exercise. Holder may exercise this Warrant in whole or in
         ------------------
part in

                                      -3-
<PAGE>

accordance with the terms hereof by mailing or personally delivering to the
Company (i) this Warrant, (ii) a Notice of Exercise in the form of Exhibit I
                                                                   ---------
hereto duly executed by Holder and (iii) payment of the Exercise Price per
share, such payment to be in the form of cash, a certified or official bank
check made payable to the Company, or a wire transfer of funds to an account
designated by the Company, or any combination of the foregoing, together with
all federal and state excise taxes applicable upon such exercise. Upon receipt
by the Company of this Warrant, the Notice of Exercise and such payment, this
Warrant shall be deemed to have been exercised with respect to the number of
shares of Common Stock subject to such exercise and specified in the Notice of
Exercise, and Holder shall thereupon become the holder of record of the shares
of Common Stock issuable upon such exercise, notwithstanding the fact that the
stock transfer books of the Company may then be closed or that certificates
representing such shares of Common Stock shall not then be actually delivered to
Holder.  As soon as practicable after any exercise, in whole or in part, of the
Warrant, and in any event within ten (10) Business Days thereafter, the Company
will deliver to Holder a stock certificate or certificates representing the
shares of Common Stock so purchased, with such certificate or certificates to be
in such name(s) and such denominations as Holder may specify in the Notice of
Exercise.  If this Warrant is exercised for less than all of the shares of
Common Stock subject hereto, the Company shall, upon such exercise and surrender
of this Warrant for cancellation, promptly execute and deliver to Holder a new
Warrant of like tenor evidencing the right of Holder to purchase the balance of
shares of Common Stock purchasable hereunder.

     6.   Adjustment Provisions.
          ---------------------

     (a)  If the Company completes the Contemplated Reorganization, the shares
subject to this Warrant will be 325,000 shares in the Surviving Corporation and
the Exercise Price will be $2.00 per share, adjusted, if necessary, if
necessary, as contemplated in Section 2 (c).  If the Company shall, during the
term hereof, (i) declare a dividend and make a distribution on the Common Stock
payable in shares of Common Stock, (ii) subdivide or combine its outstanding
shares of Common Stock, (iii) change the number of shares of Common Stock
issuable upon exercise of this Warrant by reclassification, exchange or
substitution, or (iv) reorganize the capital structure of the Company by merger,
reorganization, consolidation or sale of assets, then this Warrant shall, after
the happening of any such event, evidence the right to purchase the number of
shares of Common Stock or other securities that would have been received as a
result of that change with respect to the shares of Common Stock as if such
shares had been purchased under this Warrant immediately before occurrence of
such event.  Such adjustment shall be made successively whenever any event
listed above shall occur.  Any adjustment under this subparagraph (a) shall
become effective at the close of business on the date any such event occurs (the
"Adjustment Date") and the exercise price shall be adjusted proportionately.

          (b) If, during the term of this Warrant, the number of shares of
Common Stock of the Company is adjusted pursuant to subparagraph (a) above, then
the Exercise Price per share to be in effect after such Adjustment Date shall be
determined by multiplying the Exercise Price per share in effect immediately
prior to such Adjustment Date by a fraction, the numerator of which shall be the
number of shares of Common Stock outstanding at the closing of business on the
Business Day immediately  preceding such Adjustment Date and the denominator of
which shall be

                                      -4-
<PAGE>

the number of shares of Common Stock (or the equivalent amount of other
securities) outstanding at the opening of business on the first Business Day
after the Adjustment Date.

          (c)  Notice of Adjustment.  The Company shall give notice of each
               --------------------
adjustment or readjustment of the number of shares of Common Stock or other
securities issuable upon exercise of this Warrant to Holder or of the Exercise
Price per share at the address set forth in Paragraph 17 hereof.
                                            ------------

     7.   Fractional Shares. No fractional shares or scrip representing
          -----------------
fractional shares of Common Stock shall be issued in connection with the
exercise of this Warrant, but Grantor shall pay, in lieu of any fractional
share, a cash payment on the basis of the Exercise Price per share of the Common
Stock to be acquired pursuant to such exercise for such fractional share.

     8.   Registration Rights. Holder has been granted piggyback registration
          -------------------
rights with respect to the shares underlying this Warrant as follows:

          (a)  Definitions.  As used herein:
               -----------

               1.  The terms "register," "registered" and "registration" refer
     to a registration effected by preparing and filing with the Securities and
     Exchange Commission (the "SEC") a registration statement pursuant to the
     Securities Act of 1933, as amended (the "Act"), and the declaration or
     order of effectiveness of such registration statement, other than any
     registration statement on a Form S-8, Form S-4 or as contemplated under
     Rule 145 of the Act.

               2.  For the purposes of this Section 8 the term "Registerable
     Securities" means any Warrant Securities purchasable or purchased pursuant
     to this Warrant which have not been sold to the public.

          (b)  If the Company at any time proposes to register any of its
     securities under the Act, whether of its own accord or at the demand of any
     holders of other such securities pursuant to an agreement with respect to
     the registration thereof (provided such agreement does not prohibit third
     parties from including additional securities in such registration), and if
     the form of registration statement proposed to be used may be used for the
     registration of Registerable Securities as contemplated hereunder, the
     Company will give notice to Holder not less than 10 days nor more than 30
     days prior to the filing of such registration statement of its intention to
     proceed with the proposed registration (the "Registration"), and, upon
     written request of the Holder made within ten (10) days after the receipt
     of any such notice (which request will specify the Registerable Securities
     intended to be disposed of by the Holder and state the intended method of
     disposition thereof), the Company will use its best efforts to cause all
     Registerable Securities of Holder as to which registration has been
     requested to be registered under the Act, provided that if such
     Registration is in connection with an underwritten public offering,
     Holder's Registerable Securities to be included in such Registration shall
     be offered upon the same terms and conditions as apply to any other
     securities included in such Registration.  Notwithstanding anything
     contained in this Section

                                      -5-
<PAGE>

     8(b) to the contrary, the Company shall have no obligation to cause
     Registerable Securities to be registered with respect to any Registerable
     Securities which shall be eligible for resale under Rule 144 of the
     Securities Act.

          (c) If a Registration is a primary registration on behalf of the
     Company and is in connection with an underwritten public offering, and if
     the managing underwriters advise the Company in writing that in their
     opinion the amount of securities requested to be included in such
     Registration (whether by the Company, the Holder, or other holders of the
     Company's securities pursuant to any other rights granted by the Company to
     participate in such Registration) exceeds the amount of such securities
     which can be successfully sold in such offering, the Company will include
     in such Registration the amount of securities requested to be included
     which in the opinion of such underwriters can be sold, in the following
     order (A) first, all of the securities the Company proposes to sell, and
     (B) second, any other securities held by holders with registration rights
     requested to be included in such Registration, pro rata among the holders
     thereof on the basis of the amount of such securities then owned by such
     holders.

          (d) If a Registration is a secondary registration on behalf of holders
     of securities of the Company and is in connection with an underwritten
     public offering, and if the managing underwriters advise the Company in
     writing that in their opinion the amount of securities requested to be
     included in such Registration (whether by such holders, by the Holder, or
     by holders of the Company's securities pursuant to any other rights granted
     by the Company to participate in such Registration) exceeds the amount of
     such securities which can be sold in such offering, the Company will
     include in such Registration the amount of securities requested to be
     included which in the opinion of such underwriters can be sold, in the
     following order (A) first, all of the securities requested to be included
     by holders with demand registration rights who are demanding such
     Registration, pro rata among the holders thereof on the basis of the amount
     of such securities then owned by such holders, and (B) second, any other
     securities held by holders with piggyback registration rights, requested to
     be included in such Registration, pro rata among the holders thereof on the
     basis of the amount of such securities then owned by such holders.

          (e) Indemnification by the Company.  The Company will indemnify Holder
              ------------------------------
     against any and all claims, losses, damages, and liabilities (or actions in
     respect thereof) arising out of or based on any untrue statement (or
     alleged untrue statement) of any material fact contained in any prospectus,
     offering circular or other document incident to any registration,
     qualification or compliance (or in any related registration statement,
     notification or the like) or any omission (or alleged omission) to state
     therein any material fact required to be stated therein or necessary to
     make the statements therein not misleading, or any violation by the Company
     of any rule or regulation promulgated under the Act applicable to, and
     relating to any action or inaction required of, the Company in connection
     with any such registration, qualification or compliance, and the Company
     will reimburse Holder for any legal and any other expenses reasonably
     incurred by them in connection with investigating or defending any such
     claim, loss, damage, liability or action; provided, however, that the
     Company will not be liable in any such case to the

                                      -6-
<PAGE>

     extent that any such claim, loss, damage or liability arises out of or is
     based on any untrue statement or omission based upon written information
     furnished to the Company by Holder for use in such prospectus, offering
     circular or other document.

          (f) Indemnification by Holder.  Holder will indemnify the Company and
              -------------------------
     its officers and directors and each entity or individual who controls the
     Company (within the meaning of the Act) and their respective successors in
     title and assigns against any and all claims, losses, damages and
     liabilities (or actions in respect thereof) arising out of or based on any
     untrue statement (or alleged untrue statement) of any material fact
     contained in any prospectus, offering circular or other document incident
     to any registration, qualification or compliance (or in any related
     registration statement, notification or the like) or any omission (or
     alleged omission) to state therein any material fact required to be stated
     therein or necessary to make the statement therein not misleading, and
     Holder will reimburse the Company and its officers, directors, and
     controlling entities or individuals for any legal and any other expenses
     reasonably by them incurred in connection with investigating or defending
     any such claim, loss, damage, liability or action; provided, however, that
     this paragraph (b) shall apply only if (and only to the extent that) such
     statement or omission was made in reliance upon written information
     furnished to the Company in an instrument duly executed by Holder or any of
     its officers, directors, or controlling entities or individuals and stated
     to be specifically for use in such prospectus, offering circular or other
     document (or related registration statement, notification or the like) or
     any amendment or supplement thereto.

          (g) Indemnification Proceedings.  Each party entitled to
              ---------------------------
     indemnification pursuant to this Section 8 (the "Indemnified Party") shall
     give notice to the party required to provide indemnification pursuant to
     this Section 8 (the "Indemnifying Party") promptly after such Indemnified
     Party acquires actual knowledge of any claim as to which indemnity may be
     sought, and shall permit the Indemnifying Party (at its expense) to assume
     the defense of any claim or any litigation resulting therefrom; provided
     that counsel for the Indemnifying Party, who shall conduct the defense of
     such claim or litigation, shall be acceptable to the Indemnified Party, and
     the Indemnified Party may participate in such defense at such party's
     expense; and provided, further, that the failure by any Indemnified Party
     to give notice as provided in this paragraph (c) shall not relieve the
     Indemnifying Party of its obligations under Section 8 except to the extent
     that the failure results in a failure of actual notice to the Indemnifying
     Party and such Indemnifying Party is damaged solely as a result of the
     failure to give notice.  No Indemnifying Party, in the defense of any such
     claim or litigation, shall, except with the consent of each Indemnified
     Party, consent to entry of any judgment or enter into any settlement which
     does not include as an unconditional term thereof the giving by the
     claimant or plaintiff to such Indemnified Party of a release from all
     liability in respect to such claim or litigation.  The reimbursement
     required by this Section 8 shall be made by periodic payments during the
     course of the investigation or defense, as and when bills are received or
     expenses incurred.

     9.   Restrictions on Transfer.  The undersigned represents and warrants
          ------------------------
that this Warrant and Warrant Securities are being purchased for his investment
account without a view towards the

                                      -7-
<PAGE>

resale or distribution thereof in violation of applicable securities laws. It is
understood that in case of subsequent sale of such Warrant or the Warrant
Securities under certain circumstances, such sale might be deemed to constitute
a public distribution within the meaning of, and require registration under, the
provisions of the Securities Act of 1933, as amended (the "Act").

          (a)  The undersigned acknowledges and agrees that unless and until the
     Warrant and the Warrant Securities are registered under the Act, this
     Warrant and the Warrant Securities shall be "restricted securities" for
     purposes of Rule 144 under the Act. The undersigned shall, prior to any
     transfer or disposition or attempted transfer or disposition of the Warrant
     or the Warrant Securities give written notice to the Company of his
     intention to effect such transfer or disposition and shall deliver to the
     Company an opinion of legal counsel (reasonably suitable to the Company)
     that the proposed transfer or disposition of the Warrant or the Warrant
     Securities may be effected without registration thereof under the Act and
     without taking any similar action under any other applicable securities
     laws, in which case Holder shall be entitled to transfer or dispose of the
     Warrant or the Warrant Securities, as applicable, in accordance with the
     terms of the notice delivered by the undersigned to the Company. Unless the
     Warrant Securities are registered under the Act pursuant to Paragraph 8
                                                                 -----------
     hereof, each certificate evidencing the Warrant Securities so transferred
     or disposed of (and each certificate evidencing any untransferred Warrant
     Securities) shall bear the following restrictive legend unless in the
     opinion of Company counsel such legend is not required:

          "The shares represented by this certificate have not been registered
          under the Securities Act of 1933 (the "Act") or any state securities
          laws.  These shares may not be offered for sale, sold or otherwise
          transferred except pursuant to an effective registration statement
          under the Act or pursuant to an opinion of counsel satisfactory to the
          Company stating that an exemption from such registration is available
          for such sale and transfer."

          (b)  Until this Warrant is transferred on the books of the Company,
     the Company may treat the registered holder thereof as the absolute owner
     and Holder thereof for all purposes, notwithstanding any notice to the
     contrary.

     10.  Stock to be Delivered upon Exercise.  The Company will at all times
          -----------------------------------
keep available through the term of the Exercise Period, solely for delivery upon
the exercise of this Warrant, such number of the shares of Common Stock or other
securities as shall from time to time be sufficient to effect the exercise of
this Warrant.

                                      -8-
<PAGE>

     11.  Replacement of Warrant.  Upon receipt of evidence reasonably
          ----------------------
satisfactory to the Company of the loss, theft, destruction or mutilation of
this Warrant and, in the case of any such loss, theft or destruction, upon
delivery of an indemnity agreement reasonably satisfactory in form and amount to
the Company or, in the case of any such mutilation, upon surrender and
cancellation of this Warrant, the Company will execute and deliver, in lieu
thereof, a new warrant of like tenor to Holder.

     12.  Specific Performance.  The Company stipulates that the remedies at law
          --------------------
available to the holder of this Warrant in the event of any default or
threatened default by it in the performance of or compliance with any of the
terms of the Agreement are not and will not be adequate, and that such terms may
be specifically enforced by a decree for the specific performance of any
agreement contained herein or by an injunction against a violation of any of the
terms hereof or otherwise.

     13.  Applicable Law.  THIS WARRANT SHALL BE GOVERNED BY, AND CONSTRUED IN
          --------------
ACCORDANCE WITH, THE LAWS OF THE STATE OF WASHINGTON, WITHOUT GIVING EFFECT TO
PRINCIPLES OF CHOICE OF LAWS OF SUCH STATE.

     14.  Entire Agreement.  This Warrant constitutes the entire agreement
          ----------------
between the parties with respect to the subject matter hereof and supersedes any
and all prior agreements and understandings relating to the subject matter
hereof. This Warrant and any of the terms hereof may be changed, waived,
discharged or terminated only by an instrument in writing signed by the party
against which enforcement of such change, waiver, discharge or termination is
sought.

     15.  Successors and Assigns.  This Warrant shall be binding upon and inure
          ----------------------
to the benefit of the Company and the undersigned and their respective
successors and permitted assigns; provided, however, nothing herein shall be
construed to permit assignment of the Warrant except in accordance with the
provisions herein.

     16.  Severability.  Every provision of this Warrant is intended to be
          ------------
severable. If any term or provision hereof (or portion thereof) is determined to
be illegal or unenforceable for any reason whatsoever, such illegality or
unenforceability shall not affect any other term or provision (or portion
thereof) of this Warrant.

     17.  Notices.  All notices and other communications from the Company to the
          -------
holder of this Warrant shall be mailed by first class registered or certified
mail, postage prepaid, at the following address or at such other address as may
have been furnished to the Company in writing by such holder, or, until an
address is so furnished, to the address of the last holder of such Warrant who
has so furnished an address to the Company:

                                      -9-
<PAGE>

          If to the Company:

          XCEL Management, Inc.
          1101 Broadway Plaza
          Tacoma, Washington 98402
          Telecopy No.:  (253) 404-3842

          If to Holder:

          Garnier Holdings, Ltd.
          ____________________________
          ____________________________

          IN WITNESS WHEREOF, this Warrant has been executed by XCEL MANAGEMENT,
INC., by its duly authorized officers, as of the date first above written.

                                    XCEL MANAGEMENT, INC.:

                                    By:   ____________________________________
                                    Name:  ___________________________________
                                    Title:  __________________________________

          The terms and provisions of the Warrant are accepted and agreed to by
the undersigned this 17th day of July, 2000.

                         GARNIER HOLDINGS, LTD.

                         By: ______________________________________________
                         Its: _____________________________________________

                                      -10-
<PAGE>

                                  EXHIBIT "I"
                                  -----------

                              NOTICE OF EXERCISE
                   (To be executed by Holder to exercise the
                         Warrant in whole or in part)

XCEL Management, Inc.
1101 Broadway Plaza
Tacoma, Washington 98402

     Re:  Warrant to Purchase Common Stock dated July 17, 2000 by and between
          the Company and Garnier Holdings Ltd. (the "Warrant")

Dear Sir or Madam:

     The undersigned holder irrevocably elects to exercise the Warrant of XCEL
Management, Inc. to purchase ________ shares of Common Stock of XCEL Management,
Inc. (the "Company") subject to the Warrant, and hereby makes payment of the
amount of $________in the manner described below, representing the Exercise
Price per share of Common Stock multiplied by the number of shares of Common
Stock to be purchased pursuant to this exercise.

                              By: _________________________________________

$__________cash
$__________certified or bank cashier's check
$__________wire transfer

                             EXHIBIT "I" - Page 1

<PAGE>

                              AMENDMENT NO. 1 TO
                               WARRANT AGREEMENT

     THIS AMENDMENT NO. 1 TO WARRANT AGREEMENT (this "Amendment") is effective
as of September 22, 2000 by and between Insynq, Inc., a Delaware corporation
(the "Company"), and Garnier Holdings, Ltd. ("Holder").

                              W I T N E S S E T H

     WHEREAS, the parties have executed that certain Warrant Agreement as of
July 17, 2000; and

     WHEREAS, the parties have deemed it to be in their mutual best interests to
amend the Warrant Agreement to reflect a new exercise date to purchase common
stock, $0.001 par value per share (the "Common Stock"), of the Company
thereunder.

     NOW, THEREFORE, in consideration of the foregoing, and of the mutual
covenants hereinafter contained, and of other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

     The Warrant Agreement is hereby amended to reflect a new exercise date of
December 1, 2000, pursuant to which Holder shall be entitled to exercise the
warrants reflected by the Warrant Agreement to purchase Common Stock.

     IN WITNESS WHEREOF, the parties have executed this Amendment effective as
of the date set forth above.

                                   GARNIER HOLDINGS, LTD.

                                   By: /s/ Stephen L. Tebo
                                       -------------------------

                                   Name: _______________________

                                   Title:  Agent
                                          ----------------------

                                   INSYNQ, INC.

                                   By: /s/ John P. Gorst
                                      -------------------------

                                   Name: ______________________

                                   Title:    CEO
                                         ----------------------
<PAGE>

                              AMENDMENT NO. 2 TO
                               WARRANT AGREEMENT

     THIS AMENDMENT NO. 2 TO WARRANT AGREEMENT (this "Amendment") is effective
as of October 1, 2000 by and between Insynq, Inc., a Delaware corporation (the
"Company"), and Garnier Holdings, Ltd. ("Holder").

                              W I T N E S S E T H

     WHEREAS, the parties have executed that certain Warrant Agreement as of
July 17, 2000; and

     WHEREAS, the parties have deemed it to be in their mutual best interests to
amend the Warrant Agreement to reflect a new exercise date to purchase common
stock, $0.001 par value per share (the "Common Stock"), of the Company
thereunder.

     NOW, THEREFORE, in consideration of the foregoing, and of the mutual
covenants hereinafter contained, and of other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

     The Warrant Agreement is hereby amended to reflect a new exercise date of
December 28, 2000, pursuant to which Holder shall be entitled to exercise the
warrants reflected by the Warrant Agreement to purchase Common Stock.

     IN WITNESS WHEREOF, the parties have executed this Amendment effective as
of the date set forth above.

                                        GARNIER HOLDINGS, LTD.

                                        By: /s/ Steve Tebo
                                            --------------------------------
                                        Name: Steve Tebo
                                              ------------------------------
                                        Title:  ____________________________

                                        INSYNQ, INC.

                                        By: /s/ John P. Grost
                                            --------------------------------
                                        Name: John P. Grost
                                              ------------------------------
                                        Title: CEO
                                               -----------------------------
<PAGE>

                              AMENDMENT NO. 3 TO
                               WARRANT AGREEMENT

     THIS AMENDMENT NO. 3 TO WARRANT AGREEMENT (this "Amendment") is effective
as of October 19, 2000 by and between Insynq, Inc., a Delaware corporation (the
"Company"), and Garnier Holdings, Ltd. ("Holder").

                                  WITNESSETH

     WHEREAS, the parties have executed that certain Warrant Agreement as of
July 17, 2000;

     WHEREAS, pursuant to Section 2(c) of the Warrant Agreement the Exercise
Price will decrease by an additional ten percent (10%) on and after each
additional ten (10) day period that the Note remains unpaid after August 17,
2000;

     WHEREAS, the Exercise Price has currently decreased to $0.53; and

     WHEREAS, the parties have deemed it to be in their mutual best interests to
amend the Warrant Agreement to reflect that the current Exercise Price of $0.53
to purchase common stock, $0.001 par value per share (the "Common Stock"), of
the Company thereunder shall be fixed at such Exercise Price.

     NOW, THEREFORE, in consideration of the foregoing, and of the mutual
covenants hereinafter contained, and of other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

     The Warrant Agreement is hereby amended to reflect that the Exercise Price
shall be fixed at $0.53 and shall no longer be subject to the decrease
provisions of Section 2(c).

     IN WITNESS WHEREOF, the parties have executed this Amendment effective as
of the date set forth above.

                                             GARNIER HOLDINGS, LTD.

                                             By: /s/ Stephen L. Tebo
                                                --------------------------------

                                             Name: _____________________________

                                             Title: Agent
                                                   -----------------------------

                                             INSYNQ, INC.

                                             By: /s/ John P. Gorst
                                                --------------------------------
                                             Name:   John P. Gorst
                                                  ------------------------------
                                             Title:  Chairman CEO
                                                   -----------------------------
<PAGE>

                              AMENDMENT NO. 4 TO
                               WARRANT AGREEMENT

     THIS AMENDMENT NO. 4 TO WARRANT AGREEMENT (this "Amendment") is effective
as of October 28, 2000 by and between Insynq, Inc., a Delaware corporation (the
"Company"), and Garnier Holdings, Ltd. ("Holder").

                              W I T N E S S E T H

     WHEREAS, the parties have executed that certain Warrant Agreement as of
July 17, 2000; and

     WHEREAS, the parties have deemed it to be in their mutual best interests to
amend the Warrant Agreement to reflect a new exercise date to purchase common
stock, $0.001 par value per share (the "Common Stock"), of the Company
thereunder.

     NOW, THEREFORE, in consideration of the foregoing, and of the mutual
covenants hereinafter contained, and of other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

     The Warrant Agreement is hereby amended to reflect a new exercise date of
January 28, 2001, pursuant to which Holder shall be entitled to exercise the
warrants reflected by the Warrant Agreement to purchase Common Stock.

     IN WITNESS WHEREOF, the parties have executed this Amendment effective as
of the date set forth above.

                         GARNIER HOLDINGS, LTD.

                         By:  /s/ Stephen L. Tebo
                            -------------------------------------
                         Name:  Stephen L. Tebo
                              -----------------------------------
                         Title:    Agent
                               ----------------------------------

                         INSYNQ, INC.

                         By:  /s/ John P. Gorst
                            -------------------------------------
                         Name:  John P. Gorst
                              -----------------------------------
                         Title:   CEO
                               ----------------------------------
<PAGE>

                              AMENDMENT NO. 5 TO
                               WARRANT AGREEMENT

     THIS AMENDMENT NO. 5 TO WARRANT AGREEMENT (this "Amendment") is effective
as of December 1, 2000 by and between Insynq, Inc., a Delaware corporation (the
"Company"), and Garnier Holdings, Ltd. ("Holder").

                              W I T N E S S E T H

     WHEREAS, the parties have executed that certain Warrant Agreement as of
July 17, 2000; and

     WHEREAS, the parties have deemed it to be in their mutual best interests to
amend the Warrant Agreement to reflect a new exercise date to purchase common
stock, $0.001 par value per share (the "Common Stock"), of the Company
thereunder.

     NOW, THEREFORE, in consideration of the foregoing, and of the mutual
covenants hereinafter contained, and of other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the parties hereto
agree as follows:

     The Warrant Agreement is hereby amended to reflect a new exercise date of
May 1, 2001, pursuant to which Holder shall be entitled to exercise the warrants
reflected by the Warrant Agreement to purchase Common Stock.

     IN WITNESS WHEREOF, the parties have executed this Amendment effective as
of the date set forth above.

                         GARNIER HOLDINGS, LTD.

                         By:  /s/ Stephen L. Tebo
                             -------------------------------------
                         Name: Stephen L. Tebo
                               -----------------------------------
                         Title: Agent
                               -----------------------------------

                         INSYNQ, INC.

                         By:  /s/ John P. Gorst
                             ---------------------------------------
                         Name:  John P. Gorst
                               -------------------------------------
                         Title:               CEO
                               -------------------------------------

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