RCU Toolbar
Customizing it to only your forums is in the 2.0 version...coding is in the works.
Darthdrk - You could try to upgrade to IE 6 and that might fix it all plus give you more speed and features. I think 6 was a better version than 5 so it's worth the download.
The toolbar will show it being checked if you go to "View->Toolbars" If it is locked there will be a check next to lock toolbars.