Great suggestions, guys.
I have spent all afternoon working on this thing. Thanks for the info on housecall. It scanned my disk and came up with +/-250 infected files. Mostly from NIMDA.A and NIMDA.GEN virus. Somehow my disk is populated with readme.eml files, and each of them is 10.9M
Cleaned the disk and claimed most of the disk space but I think there are still junks out there that I have not found yet.
Unfortunately NT does not come with defragmenter. I need some help to get some freebie so I can defrag this baby.
Again, thanks for all the help and suggestions.