Implementing a Chat Button Block in PHP-Fusion

Hi,

Sorry for the Noob post,

I'd come across this post: Implementing a Chat Button Block in PHP-Fusion and thought I'd have a go putting it on my site. I've gone to Chat Channels - ChatChannels Beta #005 - Bukkit and downloaded the ChatChannels.jar file. But Now I'm a bit stumped as what to do next with the .jar file and where I get the Site ID from as it states in the instructions on the Implementing a Chat Button Block in PHP-Fusion page.

Anyone able to help me please?