How to use KiwiPress…
Finally there is an IRC plugin for WordPress that works!
KiwiIRC is a time-tested, web-based IRC client which can be added to any website with a few clicks.
To use this plugin:
1. simply and extract it into your plugins folder
2. configure your settings in the WordPress dashboard

3. then drop the short tag [kiwipress] into your page or post.
Instantly your users will be able to stay connected via IRC.