regedit.exe

Alright, so I was trying to get a keycode for D2 the other night.
In doing so, I downloaded a cracker that gave me nasty malware and/or a virus.
I got rid of most of the problems, but I keep getting this program in my task manager as regedit.exe
I looked around and found out it was a trojan known as brid.a.
I downloaded Symantec's removal tool, but it crashed (oddly) before completing.
Is there any way I can remove it manually or anyone know another removal tool?

>>2
srsly, reformat to be safe unless it would be a pain to backup everything you want to keep

My main internet connected/pirated software computer has nothing important on it. reformat and reinstall in about 3 hours if something goes wrong