Thanks for your interest in botzilla! Once you've downloaded a copy, you'll want to edit the configuration variables in botzilla.php (the Setup page has more about this). After that there are two ways to start the bot. At first, you might want to watch the terminal to diagnose any problems.
$ cd /path/to/botzilla $ php -q botzilla.php
If all is well, you can start using the start script instead.
$ ./start.sh (which is literally,) $ nohup php -q botzilla.php > /dev/null &
The package comes with two plugins, operator.class.php (ops you on join, commands to join, part, kick, quit, etc), and reg.class.php which allows unknown users to become "known" users.
Dialog is series of classes that provide multi-step question-and-answer forms for a wide variety of uses. More of this on the blog!