Adaware - click
Spyware Blaster - click
Spybot S&D - click

Ok, Ive been told that Talkstocks adds a registry code, so you can go to DiamondCS and get RegProtect

And all of the spyware sites only work in IE so tell the guys that were infected to use a different browser -
Heres a list-
Mozilla
Opera
There both free - Theres alot more, but make sure your not downloading Internet Explorer Wrappers because they pretty much allow the same scripts that Internet Explorer allows.

Most of those sites use VB to put the spyware on your computer, so ScriptDefender might catch this. Get it from AnalogX

Theres some other stuff you might want to look into.
If everything fails, you can always uninstall AIM and delete all of it's registry keys

Have fun