Chat with Mrs. Myers!
Before you install a room on your web server, you need to ensure that your web hosting company provides the right kind of platform.
To install the chat room I am about to recommend, your site needs to support Perl 5.0 and you need to have read/write access to a CGI bin. If you're not sure about this, ask your hosting company.
If you pay for hosting, I can almost guarantee your host will support this script.
However, if you're using a free web host like Yahoo/Geocities or AOL, you will not be able to install the chat room script. Most free web site providers do not grant the user appropriate access to run PERL scripts