Virus? Malware? Please help...

I'm not sure where this should have been posted but I could really use some help.about 3 days ago I had a pop up from my ISP comcast that said I could download norton anti virus since my mcafee was expired. I did this and had no problems with it so far. Now since yesterday I can't go on certain websites, Nike.com is one of them, it just shows a black page and thats on internet explorer. I also cannot even get firefox to open at all, and the same thing with AIM. Another problem I've noticed is the windows side bar where you can add the gadgets like weather, etc doesn't work, the weather gadget shows a white box instead and above my gmail widget it has a little loading icon and says secure.Is there anyway I can fix any of this? Could norton have done something to the firewall or something I wouldn't know about? I'm running windows vista.

Everytime I run combo fix it seems to fix my IE problem, I'm able to view websites fine with flash and all. I ran that yesterday, then wake up this morning and the shortcuts were gone from the desktop and didn't see it in the uninstall options but there was still a folder for it in C:. Still cannot get firefox or AIM to open and having problems with windows sidebar after running combo fix and the top gadget bar I had disapears.

I've done the read and run this site suggests but still the same thing, I also couldn't get rootrepeal to work, there was an error anytime I try to open it. I've tried all day yesterday and all this morning so far.

I'll post all the other logs:

 

Requesting to have this thread closed please.