Hey guys, now you can open multiple instances of google talk and chat with multiple IDz..
Add the following switch at the end of the target of your google talk shortcut :-

/nomutex

i.e. your target should look like this if everything is default :

"C:\Program Files\Google\Google Talk\googletalk.exe" /startmenu /nomutex

NOTE THE DIRECTION OF SLASH
and that there are no quotes.

Frm-
@shish {Cool Wizard}