Hey guys, sorry if this is the wrong place to ask, but I know you guys know a great deal about computers, I mean, I know a fair deal but I am totally stumped.

I had a virus (Trojan, either Flood or Generic don't remember), I cleaned it all up and everything was happy =).

But now my Explorer.exe refuses to function, it closes and restarts and never is up for more than 5 seconds at a time, I have tried Combofix, Hijackthis ect to see if I could find any potential cause, I could not.

Therefore, I came to the conclusion that my explorer.exe is just broken as a result of the earlier virus, so I attempted an XP reinstall...but now I look like an idiot because I cannot find my professional SP2 CD, lol so I always have to pick this OS instead of continuing with the setup upon turning on my computer. Is there any other way I can fix explorer.exe? E.G. someone sends me theirs or anything?

With love, Tyler >=].

That's quite ugly 

If you're talking about an OS-CD I have no idea what to do besides there are any fellows running the same OS who could lend you their copy for repair. That should work.
If it's only the SP that bothers you, you'll get it directly from MS or probably any Computer-related website for free.

flatten your box; that's the only safe solution; You never know what else got installed after your PC got compromised; so format your hard drive and reinstall windows; THEN I recommend you to use an account *without* Administrator rights for your daily work;
But I doubt that sp3 will fix your current issue

well i dont know if you tryed this but its allways a good thing to do with a faulty pc its called

System Restore

restore to the last point ya got on it when it asks
that should fix any coroupt file