what did you originaly sign pbl with to get it running?
You have to sign the default.xbe on the game with the same.
PS if you stuck the game on the E: or F: drive there's a dam high chance some of it is missing
The original MS bios has a 1 gig F: drive written into it this will more than likely cut through your E: drive and does not in anyway shape or form marry up with the F: drive you may see after runnig PBL
To get evox running instead of PBL you have to rename and replace the PBL xbe with the evox xbe... the evox xbe must also be signed with the same key the PBL xbe was.
In this way the exploit will now load evox instead of PBL (you can always rewrite your evox.ini so as to load PBL from it) then you can play CS