make sure all your physical connections are properly installed..
router is connected to your internet source (cable/dsl modem)
router is powered on.
the little antenna thing is properly connected to your motherboard. i don't have experience with your mobo.. but i'll just give general guidlines..
if there are drivers that need to be installed for the wireless antenna - thing, make sure you install it!
go to "network connections" in control panel and make sure the wireless connection is enabled, and the LAN connection is disabled..
if there is a password to your router youll be prompted for it...
it should connect... you should have internet connection..
so ya.. thats all i can give.. general advice.. since i don't have experience with your board.. (or any on-board wifi for mobos)
"Is virtue a thing remote? I wish to be virtuous, and lo! Virtue is at hand." -Confucius