Brian you are doing all the right things. Try deleting the infected file in "C:\SystemVolumeInformation\_restore......" Make sure that you empty your Dustbin as well.
(To get to "C:\SystemVolumeInformation\_restore......" you will have to make this folder visible. It is hidden by default. In Explorer select Tools > Folder Options > View Tab. Un-check Hide Protected Operating System Files. Okay)
Try running the FixIt File in Safe Mode. It may pick up the virus in this mode. (To select Safe Mode do the following. As your machine starts, as soon as the BIOS stuff is done, hit F8 and select Safe Safe Mode.)
Kev
October 2003