Teatimer is a the "real time" protection Spybot offers. I personally don't like it and disable it. I find that Spybot
rarely if ever finds anything on my laptop, tho it was very good on a desktop that hadn't been cleaned in a long time. I keep it around for the immunization. I figure it's really good at that, and an ounce of prevention is worth a pound of cure.
I have Vista and Ad-Aware which is my #2 choice has been acting up lately - crashes all the time. So I've been sticking with my #1 favorite
SuperAntiSpyware and it's doing a fantastic job. The big downside of it is the lengh of time it takes for a complete scan - a lot longer than Spybot, and even longer than Ad-Aware.
However, if Spybot isn't finding anything, I'd give SuperAntiSpyware a go. It's a free program and it does find a ton of stuff for me. Let me know if you try it and if it finds anything. I'd still highly suggest using Spybot even if nothing more than for immunization.
I think a lot has to do with which sites you visit. I've found one program may work wonders for one person and they swear by it, but when you use it - it finds virtually nothing. That's another good reason to have 2 if not 3 separate programs just for this purpose.