Are you sold on the notion of a wireless connection? I was never personally able to get the wifi working, but was very quickly able to get internet through the sync cable. If you want to try that method, go to
http://forum.ppcgeeks.com/showthread...ght=icsinstall and download the ICSInstall.cab file. You don't need the WMWiFiRouter file at all.
Install ICSInstall and then run Internet Sharing while your phone is connected to your computer and just click on connect.
Occasionally I find that I need to do a soft reset on my phone if things aren't working right, but 99% of the time it works great.