Yeah, its a PITA (as I said) - but once you do get your head around it it makes an elegant kind of sense, I actually like the new Categories system - although I miss the colour, the look and feel of the old category "pennants" - and I had to rewrite some of the new windowclass to get them to work with my existing extension code - but because we can get rid of all the old "*small" windowclass definitions it actually makes the overall code footprint smaller.
But as I said (Moon, you can treat this as a request) I really prefer my old "dynamically sizing" sidebar code (as I mentioned a few posts ago) - well, the functionality and more granular approach, at least :)

