How can I add a chatroom to my website?

I want to add a private chat room to my web site, as it is an organization devoted to connecting people with people to better the world; however, it seems I will have to learn php and then also some other program to do it. I am currently using Yahoo Small Business as a web host, and can either make pages there, or in Front Page, or in HTML.

You can get a free one from 8labs — http://8labs.com/
You can see it in action at www.myspace.com/everywherechat

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