taskbar icons

Summary: I need to know how to customize the taskbar icons in Vista
business.

Situation: We use an emulator here at my company. Sometimes the users need
to have multiple instances of their emulator open at the same time. They
perform different functions depending on which emulator window they are in.
Within the program itself there is no way to setup the sessions so that they
can easily differentiate between the two. (one screen this color and the
other one a different color.) In XP the desktop icon titles would show on
the taskbar. Such as "Emulator 1" and "Emulator 2". In Vista the task bar
simply shows the icon from the actual program and not the icon (or its
title) shown on the desktop.

(yes I have tried changing the icon through its properities.)

Question: How can I make the words associated with the "desktop" icon show
up on the taskbar?

Thank you for any help I can get. I just rolled out 100 of these desktops!

Melissa Little