paBox

paBox is a PHP/mySQL shoutbox script (Also known as a tagboard.) You can add it to your site and visitors can post new messages, it is similar to a guestbook. 

Features:

-MySQL Backend
-IP Banning
-Flood Control
-Customizable smileys
-Customizable swear filter
-Multi Lingual Support
-Fully featured Admin Center with the ability to have seperate admin accounts
-paCode: Allows users to format their shouts without allowing HTML
-paCode buttons: Users can format their posts and use paCode with the click of a mouse
-Ability to edit and delete shouts
-And many more!

Requirements:

· PHP 4.1.0 or higher