You may have noticed that private message capability has been added to your clansite recently (shows as "Messages" in the user menu as well as there being links to send people PM's on forum posts). Notifications in TeamSpeak by the bot have now been integrated with this as part of welcome messages (when you join your TS server) as well as instantly when you receive a new message.
The main idea behind this is to replace the god-awful "Offline Messages" system that TeamSpeak has, with a far superior system (you can even send a PM to roles instead of just an individual user). Creating a new private message "thread" can be done from your messages page (click on "Messages" in the user menu at the top right of your clansite).
At the moment, integration is limited to notifications with links to view and reply to new messages. The reason messages aren't shown in full in TS is because the format a message is saved in is in HTML which isn't viewable within TS (so you'd see all the HTML formatting markup and would look like a mess). I'm currently looking into changing/adding a text format on clansites to output to BBCode (which is what TS uses for formatting), which will be much more compatible (although it will still be subject to TeamSpeak's limitations like no images in chat messages).
On a related note, clansite forums have been massively improved for both functionality and appearance. As part of that upgrade I've added default field types for images and files to new forum topic creation as well as for replies to topics to make attaching files and images easy. A long time ago I had similar defaults which I had since removed from the clansite install scripts. So if your clan has been using Rusty for a long time you may have double image or file fields. If so, let me know and I'll clean it up for you.
Even though clansite forums are on-par (or far surpass if you factor in the maintenance free aspects) with any other forum system, I am fully aware of how much only having a single clan per clansite is a show stopper for multiclans. So I'll be starting the Diplomacy line of planned features early to create a workaround for "one bot to rule them all" which will actually be more flexible (and far easier to implement) since you'll be able to permit more then just sub-clans access to sections of your forums (like alliances).