dude i have a vbs bug and it has been turning all my .jpgs and .mp3s and misc other shit into vbs script ;( i tried to delete it once with some online scanner but it still lurks ;( i run windows xp :o
I dont know if this is the one you ran, but I would do this, then find out the exact name of the virus. Then you can probaly find out some better fixes for that particular virus online.