1) Any message which is NOT a reply to another message is a blog post.
2) All replies to that message (and replies to them etc.) are "comments"
3) Blog posts can be filtered by poster, year, month, and day by the URL
	http://mybbs.synchro.net/blogs/Deuce
		Would be my blog entries.
	http://mybbs.synchro.net/blogs/Deuce/2007
		Would be my blog entries for 2007
	http://mybbs.synchro.net/blogs/Deuce/2007/02/18
		My blog entries for Feb. 18th, 2007

I still haven't figured out the best way to display comment threads...
Any succestions are welcome.