See if you have an Autorun.inf in each partition. if it is then windows explorer is doomed. Run trendmicro's hijackthis to see if the virus is still in registry's run. post the LOG from Hijackthis.
Hijackthis
http://www.speedyshare.com/200360793.html
I had to manually kill amvo.dll using kill box. Norton everytime detected and cleaned it but it was coming back because of system restore. Disable it before any removal.
Killbox
http://www.speedyshare.com/199976245.html
And are you able to turn off or on hidden system files?