Spybot S&D hasn't been immunizing the hosts file for new installs for some time now. Read the following for more.

http://forums.spybot.info/showthread...330#post267330

Also, since Microsoft will stop supporting Windows 2000 as of July 13th, 2010 you should probably be considering either an upgrade or taking that PC out of service as soon as possible. Once Security updates are no longer available it becomes impossible for any security software to truly protect an operating system effectively.

http://support.microsoft.com/ph/1131/en-us#tab0

Bitman