I recently got a new computer, it was running Windows 7 Professional 64-bit, but I tried to use my Nanostick, however remember, this is 64-bit. The drivers included on the disc are only for Windows Vista 64-bit (labelled BETA), and dont work in Media Center, yet alone Windows 7.

So after many hours upon hours of frustrated searching, I found it (cue. halo sound):
http://www.pctvsystems.com/... (Driver link)

Windows 7 BETA drivers for 32 & 64-bit for pratically every Pinnacle device I've ever seen.
I hope this help's someone, because I was seriously thinking of returning the Nanostick.