Oh well, if we are asking for things perhaps it would be good, and make it more of a professional integration, if the search, advance search, new posts etc only displayed items that were specific to the tab that you are on.
If for example you have 150 forums spread across 10 tabs and the user is only interested in the forums contained within one of those tabs (i.e. forum categories) then it would make a more pleasant user experience if the search was only the forums in the tab they are interested in, or new posts only displayed the new ones in those forums and not every new post spread across all 150 forums.
Just a thought - and asked by my forum users