Ah, after a few minutes of fiddling, I finally managed to get NBAHomepass to work on my Win7. I was fast losing hope that I couldn't get Homepass to work because of my Atheros adapter (and I didn't want to buy a dongle). Thanks a bunch! :D
Ugh, my problem too. I don't have spare USB adapters, no Android device lying around, no DD-WRT router, and have an Atheros chipset on my laptop (which gave me a BSOD so terrifying that I never attempted Homepass again since).