WP Mibew is a Free WordPress plugin that will help you include the Mibew chat on your WordPress installation.
Just paste [wp-mibew] short code anywhere in the post or your theme files. It will be found and replaced.
Additionally, you can include HTML comments around [wp-mibew] they will be replaced too.
WP Mibew will generate the chat code for you.
Demo
httpv://www.youtube.com/watch?v=OSKTfnUlg6g
Download
http://wordpress.org/extend/plugins/wp-mibew/