i highly recommend u move to firefox as its better in every way, its faster, safer and has tabbed browsing , also ive never heard of that antivirus it might be a good idea to go out and buy norton or mcafee virus scan and maybe a firewall as well
i wouldnt wait until IE7 i would just get firefox, everyone recommends it for a reason and i think its already better than IE7 and i think a lot of people would agree with me and u can import bookmarks and all that so u wouldnt have to start over or anything like that