At least in C::B svn 8082, those splitters (Symbols and Resources) are remembered from their last configration in my system (not Windows XP, but Vista). If you don't see them remembered try to go to
View -> Layouts -> Save current, after configuring those splitters as you desire, and use that layout for your next sessions in C::B, if you have defined some of them.
The only point pending (at least for me) in the Management window is the "status" for opened categories and folders in the workspace browser (Projects tab). It would be great having also that feature implemented

Regards.