Hi there.
I was wondering if it might be a nice idea to be able to insert some sort of divider between channels, so you can make certain channels more important then the rest. For instance password-protected channels can be grouped this way.

Also a small tip for TS2 RC1. When a channel is divided into subchannels the user that is in the main channel is displayed UNDER all subchannels, this is very unlogical as it appears (at first glance) that the user is in the subchannel rather than the main channel. I know that there is a "-"sign in front of the channel you are in but still I would say that the users position (being in the main channel) would be just under the main channel AND just above all subchannels. Looks much more logic IMHO.

These are minor stuff but enhance userfriendly-ness greatly.
Hope you can implement my suggestions.

BTW: Great proggy, looking forward to the final release (without all the bugs, LOL)

DeLeyt