Trying out the beta1 right now, everything works great except for CSS style any reason for
#conversationContainer {
overflow: scroll;

Because unecessary scrollbars appears (at least in my theme).
overflow: hidden;
is better in my situation.

By the way when trying to create a thread with the link you posted in beta1 thread I get a
You do not have permission to access this page.
Shade 28 Oct
If you have many messages in a page, overflow: scroll is necessary to read older messages; otherwise you won't be able to access them.

As for permissions, I have fixed them so you can now post threads rather than flood this thread, which I have now closed.