It's really strange, I had success one time installing wireless drivers in the x86 os.
Rebooted and drivers were gone, tried again and it didn't wokr

This is really confusing to say the least :p
The system drive (X:) loads into ram. When you're running it live you could erase half the files and rename the other half random gibberish, and on reboot it would go back to exactly how it was.
You gotta use dism to load drivers, offline. Here, extract this and go to where dism.exe lives and run those commands I told you a few posts back to add drivers:
http://l.bitcasa.com/DmXx2MckOK, So I'm a little slow. Please explain to me why there are no ATI drivers installed?