Open as Many as Gtalks at a time .....!!!

Right click on the desktop and make a shortcut.
(1). Then a window will appear and in the Browse set the path of Gtalk like

("location")

example:-
("C:\programfiles\google\Google Talk\gtalk.exe")
or
( "C:\Users\TuShAr\AppData\Roaming\Google\Google Talk\googletalk.exe")
(2). After the path in the Browse give a space and write /nomutex
("location" /nomutex)
(3). Then click on the Next Button and give name googletalk.exe and click on finish.
(4). Now whenever you will click on shortcut every time a new gtalk will open.