re: HELP
I use the Norton antivirus system. If you do, or if you know anyone with a recent copy that you can borrow the disc for, boot up on the CD (NOT your hard drive) and do a sweep of your system from the CD version of Norton.
Symantec's information on the ZLOB Trojan is here. It includes removal instructions.
A non-Norton removal methods page can be found at:
http://www.xp-vista.com/spyware-removal/zlob-removal-instructions