Anyone interested in building a message board that displays in hierarchical threads (that "tree" look), you will find this article to be very helpful. It contains everything you need to build this kind of forum.
http://www.aaronzoller.com/view_article.php?article=27
And here is the address to a working example of the code contained in the article:
http://www.aaronzoller.com/message_board.php
If you don't feel like reading the whole thing (it's pretty long), then just scroll to the bottom and copy out the whole last section of code. That is the actual file for message_board.php. It is the same technology I am using for my personal forums page: http://www.aaronzoller.com/forums.php
Have fun,
Aaron Zoller
www.AaronZoller.com
