CGI:IRC web based IRC client
CGI:IRC is a Perl/CGI program that lets you access IRC from a web browser, it is designed to be flexible and has many uses such as an IRC gateway for an IRC network, a chat-room for a website or to access IRC when stuck behind a restrictive firewall.
This is a very quick guide to CGI:IRC, you will find more documentation in the docs directory and on the website.
Generally if you pay your host enough they will let you run CGI:IRC, but beware it does use a lot of memory because each user uses a web server process and a perl process. This is due to the stream based nature and the fact most webservers are designed to serve static content.
These are very simple instructions, see the website for more in depth instructions.
If it doesn't work see the website as it has answers to common problems.
CGI:IRC has a mailing list for support questions and anything else: http://lists.sourceforge.net/lists/listinfo/cgiirc-general
Make sure you read the FAQ on the website before posting though ;-)
-- David Leadbeater http://contact.dgl.cx/