http://www.techsuppo...t.htm#Section_1
Support Alert is authored by Gizmo Richards (Ian Richards) and contains a large amount of Support and Malware Information.
In this months Newsletter dated October 19, 2005 he referred to Tom Coyote Forums and pointed it out as a good place to download HijackThis for use on your PC.
You can join to receive the monthly newsletter which is full of helpful information and links to other good sources of information and help.
An excellent read!