The only reason I made this post was to see if I should have continued my efforts to clean the system, or just stop and reformat the entire thing. Spybot I've used before. No offense to anyone who uses it, but it's junk. I used it for a while, and it made things worse in the end, and it was a clean format that I installed it on.
The anitivirus check I was doing on that laptop took a little over 5 hours total, ending roughly 35 minutes after I made my initial post. And if you add the hour and a half scan that Ad Aware did, that's roughly 7 hours total of scanning.
The kids that use that laptop never bothered to clean the temp files from the system, and whatever they downloaded to cause the mess in the first place was downloading more and more junk and viruses into the system each second the thing was connected to an internet connection. During the long virus check, the antivirus categorized some of the infected files as trojan generators.
From what I've seen, the Avast antivirus seemed to do a very nice job. Picked up a few bits of adware that Ad Aware didn't, and I can't find any other indications of viruses in the system. Took me 4 hours though to clean out the temp files and temporary internet files, but in the end I regained 30 gigs of space on their system.
Hopefully the system is free and clear. Right now it boots up a bit slowly, but it probably needs a defrag after what it's been through. Also, it's been my experience that when a computer has been hit hard with viruses, no matter how clean you get it, the damage is done.
So far, it's looking good.