GUARANTY

                                (By Corporation)




TO:          IBM CREDIT CORPORATION                DATE          August 23, 2000
                                                                 ---------------

             1500 RiverEdge Pkwy.

             Atlanta, GA 30328




Gentlemen:


In consideration of credit and financing accommodations granted or to be granted
by you to PWR Systems,  Inc.  ("Dealer"),  which is in the best  interest of the
undersigned,  and for  other  good  and  valuable  consideration  received,  the
undersigned  guaranties  to you the prompt  and  unconditional  performance  and
payment by Dealer of any and all obligations, liabilities, contracts, mortgages,
notes, trust receipts,  secured  transactions,  inventory financing and security
agreements,  and  commercial  paper on which Dealer is in any manner  obligated,
heretofore,   now,  and   hereafter   owned,   contracted  or  acquired  by  you
("Liabilities"),   whether  the  Liabilities  are  individual,  joint,  several,
primary, secondary, direct, contingent or otherwise. The undersigned also agrees
to indemnify  you and hold you  harmless  against any losses you may sustain and
expenses  you may  incur,  suffer or be liable  for as a result of or in any way
arising out of, following,  or consequential to any transactions with or for the
benefit of Dealer.

If  Dealer  fails  to pay or  perform  any  Liabilities  to you  when  due,  all
Liabilities  to you  shall  then be deemed to have  become  immediately  due and
payable,  and the undersigned  shall then pay upon demand the full amount of all
sums owed to you by Dealer,  together  with all expenses,  including  reasonable
attorney's  fees,  which shall be deemed to be not less than fifteen  percent of
the  debt or the  amount  legally  permitted  if  placed  with an  attorney  for
collection.

The liability of the  undersigned is direct and  unconditional  and shall not be
affected by any  extension,  renewal or other  change in the terms of payment of
any security  agreement or any other  agreement  between you and Dealer,  or any
change in the manner,  place or terms of payment or performance  thereof, or the
release, settlement or compromise of or with any party liable for the payment or
performance  thereof,  the release or non-perfection of any security thereunder,
any change in Dealer's  financial  condition,  or the  interruption  of business
relations  between you and Dealer.  This Guaranty  shall continue for so long as
any sums owing to you by Dealer remain outstanding and unpaid, unless terminated
in the manner provided below. The undersigned  acknowledges that its obligations
hereunder are in addition to and  independent  of any  agreement or  transaction
between  you and Dealer or any other  person  creating  or  reserving  any lien,
encumbrance  or security  interest in any property of Dealer or any other person
as security for any  obligation  of Dealer.  You need not exhaust your rights or
recourse  against Dealer or any other person or any security you may have at any
time before being entitled to payment from the undersigned.

This Guaranty is  assignable,  shall be construed  liberally in your favor,  and
shall  inure to the  benefit  of and bind  your and our  respective  successors,
personal  representatives and assigns,  and also benefit any of your existing or
future affiliates that may extend credit to Dealer.

If Dealer hereafter is incorporated,  acquired by a corporation,  dissolved,  or
otherwise  undergoes  any  change  in its  management,  ownership,  identity  or
organizational  structure,  this  Guaranty  shall  continue  to  extend  to  any
Liabilities of the Dealer or such resulting corporation,  dissolved corporation,
or new or changed legal entity or identity to you.

<PAGE>

The  undersigned  waives:  notice of the  acceptance  of this  Guaranty,  and of
presentment,  demand and protest;  notices of  nonpayment,  nonperformance,  any
right of contribution from other guarantors,  and dishonor; notices of amount of
indebtedness of Dealer outstanding at any time; notices of the number and amount
of advances made by you to Dealer in reliance on this  Guaranty;  notices of any
legal  proceedings  against  Dealer;  notices and hearing as to any  prejudgment
remedies;  and any other  demands and notices  required by law. The  undersigned
further  waives all  rights of  set-off  and all  counterclaims  against  you or
Dealer.  The  undersigned  also waives any and all rights and notices or demands
relating to any  collateral  now or hereafter  securing any of the  Liabilities,
including, but not limited to, all rights, notices or demands relating,  whether
directly or indirectly,  to the sale or other  disposition of any or all of such
collateral or the manner of such sale or other  disposition.  All waivers by the
undersigned herein shall survive any termination or revocation of this Guaranty.
The  undersigned  authorizes  you to sell at public or private sale or otherwise
realize upon the collateral now or hereafter securing any of the Liabilities, in
such  manner and upon such terms and  conditions  as you deem best,  all without
advertisement or notice to Dealer,  the undersigned,  or any third parties.  The
undersigned  further authorizes you to deal with the proceeds of such collateral
as provided in your agreement with Dealer,  without  prejudice to your claim for
any deficiency and free from any right or redemption on the part of Dealer,  the
undersigned  or any third  parties,  which right or  redemption is hereby waived
together with every formality  prescribed by custom or by law in relation to any
such sale or other realization.

The undersigned  further agrees that all of its right, title and interest in, to
and under any loans,  notes,  debts and all other  liabilities  and  obligations
whatsoever owed by Dealer to the  undersigned,  whether  heretofore or hereafter
created or incurred and for whatever amount, and all security therefor, shall be
now and  hereafter  at all times  fully  subordinated  to all  Liabilities.  The
undersigned  will not ask, demand or sue for, or take or receive payment of, all
or any part of such loans,  notes, debts or any other liabilities or obligations
whatsoever or any security therefor, until and unless all of the Liabilities are
paid, performed and fully satisfied.

The undersigned has made an independent investigation of the financial condition
of Dealer and gives this Guaranty based on that  investigation  and not upon any
representations made by you. The undersigned  acknowledges that it has access to
current  and  future  Dealer  financial   information   which  will  enable  the
undersigned to continuously remain informed of Dealer's financial condition. The
undersigned also consents to and agrees that the obligations under this Guaranty
shall not be affected by your:  subsequent  increases or decreases in the credit
line that you may grant to Dealer;  substitutions,  exchanges or releases of all
or any part of the collateral now or hereafter  securing any of the Liabilities;
sales or other  dispositions  of any or all of the  collateral  now or hereafter
securing any of the Liabilities without demands,  advertisement or notice of the
time or place of the sales or other dispositions; realizing on the collateral to
the extent you, in your sole discretion, deem proper; or purchases of all or any
part of the collateral for your own account.

This Guaranty and any and all  obligations,  liabilities,  terms and  provisions
herein shall survive any and all bankruptcy or insolvency  proceedings,  actions
and/or  claims  brought by or against  the  Dealer,  whether  such  proceedings,
actions and/or claims are federal and/or state.

This  Guaranty is submitted by the  undersigned  to you (for your  acceptance or
rejection  thereof)  at  your  above  specified  office;  as  an  offer  by  the
undersigned to guaranty the credit and financial  accommodations provided by you
to Dealer. If accepted,  this Guaranty shall be deemed to have been made at your
above  specified  office.  This Guaranty and all obligations  pursuant  thereto,
shall be governed and controlled as to  interpretation,  enforcement,  validity,
construction,  effect and in all other respects by the laws of the state of your
above specified office. The undersigned,  to induce you to accept this Guaranty,
agrees  that all  actions or  proceedings  arising  directly  or  indirectly  in
connection  with, out of, related to or from this Guaranty may be litigated,  at
your sole  discretion  and  election,  in courts  within the state of your above
specified  office.  The undersigned  consents and submits to the jurisdiction of
any local,  state or federal court located  within that state.  The  undersigned
waives  any right to  transfer  or change  the venue of any  litigation  brought
against the undersigned by you in accordance with this paragraph.

Any delay by you, or your successors, affiliates or assigns in exercising any or
all rights  granted  you under this  Guaranty  shall not  operate as a wavier of
those rights.  Furthermore,  any failure by you, your successors,  affiliates or
assigns, to exercise any or all rights granted you under this Guaranty shall not
operate as a wavier of your right to exercise any or all of them later.

<PAGE>

This document contains the full agreement of the parties concerning the guaranty
of Dealer's  Liabilities  and can be varied only by a document signed by all the
parties hereto.  The undersigned may terminate this Guaranty by notice to you in
writing,  the  termination  to be  effective  sixty (60) days after  receipt and
acknowledgment  thereof by you, but the termination shall in no manner terminate
the undersigned  guaranty of Liabilities  arising prior to the effective date of
termination.

WE AGREE THAT ANY ACTION,  SUIT OR PROCEEDING RELATING DIRECTLY OR INDIRECTLY TO
THIS GUARANTY OR THE  RELATIONSHIP  BETWEEN YOU AND US, WILL BE TRIED IN A COURT
OF COMPETENT  JURISDICTION BY A JUDGE WITHOUT A JURY.  THUS, WE HEREBY WAIVE ANY
RIGHT TO A JURY TRIAL IN ANY SUCH ACTION, SUIT OR PROCEEDING.

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<CAPTION>

<S>                                                          <C>

WITNESS:

                  /s/ J. Melissa Reformato                                                 VIZACOM INC.
                  ------------------------                                                 ------------

                                                                                   (Name of Corporate Guarantor)

             (Print Name J. Melissa Reformato)                By:                              /s/ Mark E. Leininger
                         ---------------------                                                 ---------------------

Address:             Glenpointe Centre East                                       (Print Name Mark E. Leininger)
                     ----------------------                                                   ------------------

             300 Frank W. Burr Blvd., 7th Floor               Guarantor's Address:
             ----------------------------------

                     Teaneck, NJ 07666                                                Glenpointe Centre East


                                                                                300 Frank W. Burr Blvd., 7th Floor


                                                                                         Teaneck, NJ 07666

(SEAL)                                                        ATTEST:

                                                                                     /s/ Judith L. Kunreuther


                                                                                       (Assistant Secretary)

                                                                                 (Print Name Judith L. Kunreuther)
                                                                                             ---------------------
</TABLE>