Help with running malware removal step 5 & on

I started trying to do the 10 step Malware Removal Guide last night. I ran into many problems: unable to run Counter Spy (able to download though) and unable to install latest version of SUN Java (able to download as well). I got this error on both: "The system administrator has set policies to prevent this installation."

I am currently unable to use my PC in the general boot mode and can ONLY use it in safe mode. I'm in a real pickle because I can't move forward in the Malware Removal process and I cannot get back to a restore point where my PC worked before because the Norton Go-back (to restore my system) won't work in safe mode.

I was unable to locate the file for Search & Destroy although one was made.

My PC is a Dell Dimension, 2.66 GB free disk space.

PLEASE help me!! Thanks!