Hello jw, and welcome to Sevenforums!
If you can download something (perhaps from another computer), click here
to download the latest driver and save it to your system. There is something I noticed, there is no separate driver lists for x64 and x86. Its last update was the start of '10. It may just be an incompatible device. If you can, see if another device works on the computer. Go through your control panel programs and uninstall everything that has to do with wireless, such as the wireless adapter software. Then install the new adapter and see if that does anything. If not -
Follow this tutorial: Internet Troubleshooting Guide