Search function redirection

Recently my altavista and google searches get redirected to a site called BTCAR. I ran adaware, windows virus program, deleted cookies, history and files from my control panel. I still get my searches redirected. Can someone give a clue how to reset so I get my google and altavista searches back?

forums.techguy.org/security/4734 … acker.html

jlick;
Thanks,
I am a bit overwhelmed with the information provided but it lookes like I can solve the issue. I just plan on doing it at a more “somber” moment.
It woulod be so nice if we could go fisticuffs over these incursions of my private domain in a private secluded moment.
Actually, I would like to kick their ass and stuff their D*ck down their own throat and chuckle while they choke.
OK OK OK I am better now. I will try the suggestions reported.
You, my friend are at “HERO” level in my book.

I had time today to try the above suggestion. It worked great. Thanks again.