uninstall the software.
control panel> system > hardware tab> device manager
there find the card (it might have an x or an exclamation point in it.
right click it and select uninstall.
reboot the pc, and when it asks it for drivers, tall it fro ma specific location, and the file selection dialog popus up. point it to the drivers (the unzipped olfer if you downlaoded it or the CD) and keep clicking the folders until you find one that has a file in it via that window.
instlal it, and hten use windows to setup/configure/use the wireless connection