Driver for Genius Optical Wireless Pro Mouse (With Thumbs buttons). OS: Windows XP. Adds fordward and backward options for the thumb butons (which were missing in the original driver). Check www.geniusnet.com.tw for driver updates. Driver should also work on W2000 & 2003 But i havn't tested it.
Anyway mouse doesn't need a driver in WXP, 2003, and 2003 or Linux but if you whant some extra functions give it a try.
PS: Shut down application when playing Games.