|"if i connect directly to the cable modem i can get online but when i connect my wife's wireless up it doesn't work...."|
I'm not sure what you're getting at? In your post in the Linux forum, you state that your wife has a laptop. I assume you either have a wireless cable modem or a modem with a wireless router & that you're asking about two different computers (a desktop & a laptop)? As long as the wireless settings are configured properly, it shouldn't make any difference which OS is on the desktop system.
And just out of curiousity, why do you need a 64-bit OS?