I agree, download both SpyBot Search & Destroy and Adaware. Between those 2 programs, you'll be safe.
Tip for Spybot, after you scan and remove spyware, make sure you Immunize your machine, it's on the main screen of Spybot. This places bogus files in your machine so that the next time a malicious site checks you out, it will see the bogus files and not bother with 'reinfecting' your machine again. It's pretty slick.
They're both free, and the best I've come across yet. Never heard of the program you downloaded, Semper.
You have to be careful, there's many programs claiming to be 'spyware removers' and yet have nasty spyware built into them.
Are you running Norton 2004? My mom bought that one and I couldn't get that damn thing to work. I fought it for several hours, and finally went online to see if anyone else was having issues with it, and there were hundreds of people having the same problems as I was. Guess Norton '04 is a real dog.
Took it back and downloaded AVG for free, problem solved.