it IS the hosts file. you will see a 64 or something IP address before every line of your hosts file.
Go here to get
Hijacked
http://www.spywareinfo.com/articles/hijacked/
Other sites to check out that helped me get rid of it are:
Spybot
http://patrick.kolla.de/
Article
http://computing.net/windowsxp/wwwbo...rum/65247.html