I have a Trojan that I can't remove.

You did not say what virus scan program you were using but look at this info from McAfee:

http://vil.nai.com/vil/content/v_100944.htm

You exact name is one of the aliases at the end of the page.
Since you are using WinXP, you need to disable System Restore before trying to remove this virus. Again since you did not indicate what virus scan software you are using, you could try using one of the free programs here:

Avast: http://www.majorgeeks.com/download1968.html
AVG: http://www.majorgeeks.com/download886.html
AntiVir: http://www.majorgeeks.com/download955.html

 

You could also try one of the possible free online trojan scanners like:

http://www.trojanscan.com/ presently offline, but maybe online soon

http://housecall.trendmicro.com/housecall/start_corp.asp