|I haven't got this completely figured out, but I can help.|
If you don't have Spybot Search and Destroy installed, go to another computer and get the install package. On the infected PC, boot into safe mode, no networking. Go to C:/Documents and Settings, right-click and choose Properties from the list. Uncheck the box for Hidden and then apply to subfolders when prompted. Run Spybot and it should find some problems. Clean them up. Go to Control Panel/Internet Options/Security tab. Select the option for restricted sites and add www.blogtalkradio.com. I think that will solve your short-term problem. You should also consider running Stinger from McAfee. Both Stinger and Spybot take at least an hour to complete.