PHP discussion board / comments board

This is a three-part tutorial that shows you hwo to make a comment/discussion board like those on this site using PHP and mySQL. there are three files: comments.php, which displays the comments, commentadd.php, which processes the comment, and commentform.html which is simply a form that can be placed in any page manually or per SSI (server side includes). I realize that it is possible to have all three components in one file, but we are using this multifile method for tutorial functionality.