You should also look into using more than one spy ware detector / remover.
I use Giant spyware remover, Adaware, and spybot. I recommend doing multiple as not all of the companies provide updates as quickly as they should. 3 is probably overkill, but at least I am spyware free. Also try to use firefox instead of IE, it is less susseptible to popups and infections via malicious sites.
-Goz