I've got enough fixes and mods now that I decided to make my patched wollabot.php available. It fixes bugs that would cause the $data array to be broken in most of the module methods, incorporates my irc password protected server patch, and the other submitted patches on the sourceforge patch list.
Get it here: wollabotphp.zip
The zip contains the /lib/wollabot.php file. Unzip it and copy over the distributed copy.
This includes the patch that makes use of the pear smartIrc package. Make sure you have installed that package using:
pear install Net_SmartIRC
More information about Pear can be found here: http://pear.php.net/