BlaB package has been updated to version 9.1. BlaB! is a fully resizeble, multilanguage PHP/AJAX based and best viewed with any browser web chat that supports PHP4+ and MySQL, SQLite & PostgreSQL databases.
It has guest login, built-in user registration system, sound notifications, changeable sets of emoticons, history that can be kept forever and much more!
Review, Rate and View Demo of BlaB here: