This format is similar to the Corvette Forum setup. I think it is one of the best. It does need to have the directory tree at the bottom of the page as it does at the top. I am looking forward to it's growth.
A couple of other things come to mind:
Please extend the limit for editing a post without the edit message showing. I always preview my posts, but sometimes we miss something until after submiting the post. We get one "free" edit, and then the dreaded edit message pops up. Some forums give you a 30-minute window to edit your posts before making it known that it has been edited.
In addition, is there any way to set typeface preferences with out having to select fonts each time we post?