Well there is something else you can do if you are worried that your machine has been breached:
Get a copy of Hijackthis from:
http://sourceforge.net/projects/hjt/
Run it and take a copy of the log produced, PM me the log. (You could post it publicly however it will show all the gut's and gore that make up your current computer build, which might have some small amounts of data you don't necessarily want to share)
I'll take a look at the log and see if I can identify if there's been a breach and maybe if your lucky I'll be able to put some steps forwards on how to deal with it.