I have done some major work to the tree mail system. You will notice hopefully no bugs but a few changes:
1) The tree mails now behave just like the threads. They are paged now, so those of us with tree mails that have hundreds of replies no longer have to wait forever for them to load up.
2) Just like the threads, you can only reply at the bottom of the final page.
3) When you click to view a mail, it will auto-jump to the latest new reply.
4) The look of the tree mail system has changed a bit.
This brings the tree mail system into the current era and is a lot better, in my opinion. Now that I have done all this re-working, I can make the drafts feature that some of y'all were asking for.
If anybody finds any odd behavior, please let me know!