"I am confused, QuickDraw. If the poster cannot get online via Windows XP, how does he or she get the drivers?"
I was speaking of the Boot Camp drivers that comes on the Leopard Disc. 🙂 This could possibly be the answer to your troubles as well if you haven't already installed them yourself. After you've successfully installed Windows via Boot Camp, you need to boot up into Windows, then stick in your Leopard Disc and the drivers are supposed to install automatically. If after you've installed the BC drivers you still cannot get online via your router, then post back.
Hope this helps.
By the way, you really need to start your own thread. That way you'll have a better chance of being assisted from others. Just a suggestion. 🙂