Hello I currently use the infamous "twisty java  script" but I like your solution better, but it does not have those little arrows for indication of expanded text.
Hope this makes sense.   I would also like to second the option for ordering the titles, instead of the auto sort by alphabetical.

Thanks...

And one more request.

Auto expand on mouse hover?  is this possible?

Thanks.

Mitch.  Maybe you designed it this way, but the arrow indicators are displayed above the subject line instead of to the right of the subject.
I looked though the install files to see if this was a simple HTML positioning which I could change and did not see anything.  Can you move the arrows so that they show to the right of the subject?

Thanks..