After haveing loads of problems getting my rieless to work would it be possible to just buy this

Apple Airport Extreme 802.11G Compatible Mini Card

Model number: AR5BXB6

APPLE AIRPORT EXTREME WIRELESS MINI PCI-E CARD- AR5BXB6 on eBay (end time 21-Aug-10 11:56:34 BST)

Also if i was to buy this would it work Ok Under Windows 7 ?