Thanks.
I intend to scrub my Hard Disk making it spring-clean because it seems that all the exe files have been infected. I will do a new installation of XP and thank God I have backed-up all my files which I will also reinstall.

I have gone to the sites that were suggested and I have downloaded Panda Quick remover.

I will change the antivirus I that was installed because it failed and was even infected. I think I will go for Panda.

Thanks once again. Any more advice will still be appreciated.
artkaye