I downloaded the latest version of MBAM on my memory stick and I am going to try to run that tonight. What other tool do you recommend?

You need to update the MBA-M. Here is the offline database update. It won't be as up to date as it would be if you could do it normally but it will give you a higher database than the one you downloaded with the new version.
http://www.malwarebytes.org/mbam/dat...mbam-rules.exe
Download that to the USB stick also. Then put the MBA-M program on the infected computer and then update it using the database file from the usb stick.
See what you can come up with there. Honestly not sure if the other tool I was thinking about can run from a memory stick but we will see. Let's wait and see what the next MBA-M scan finds and removes and what the results will be on the infected computer.

The MBA-M file is being blocked by something evil. I cannot open the program on the infected cpu no matter what.

I have the back up cd's that came with the cpu.

I assume you mean that came with the computer. The cpu is only a part of a computer...If you are willing and able then probably your best bet is reformat and reload.

Yes. I think that's my best option. Thank y ou for your help. Can you please tell me how to reformat and reload?

Please read through them carefully. It really isn't hard to do, however.
Step-by-Step: Clean installing Windows XP (Interactive Setup)
This page gives pretty good instructions. Be sure you have disks which also contain drivers for all your hard ware...audio, video, etc.
Takes a couple hours. Once the system is loaded then go to Microsoft Updates to download all needed updates.

Mine was also attacked by the same thing.
All i did was backup important files to another system and formatted the whole drive.

I came across this on one of the laptops that I have to support, and after multiple scans with different software, and about a half day's worth of work, my only option was to back up the user's data, and recreate the system from an image that we have archived.

Lucky for me there was very little user data, which was scanned before installing on the new image.

Yup - that is usually the best option.
Unfortunately, it is unavailable to many because they fail to regularly back up important data and/or have no copy of Windows for re-install.
The big manufacturers not including Windows Disks with their machines ticks me off!
How many users actually burn recovery disks? I can tell you: too few!

/End Rant