When you fist enter the control panel in 6.5b1 could you change the 3rd tab (Infopop Products & Services) so it opens up in a seperate window? This way you don't loose the forum or the CP. The way it is now you either have to hit the back button or open up a new window and reload the forum.
I wasn't sure if you wanted this here but I don't think this is a bug so I didn't put it in the beta bug section.