Clone of live chat/support site using PHP, MySQL, AJAX, CSS

I am looking for an exact replica/clone of 'livechatinc dot com' It must look exactly like and work exactly like that web site. You can sign-up for a free account on their site to check functionality for 30 days. You must use only HTML, PHP, MySQL, AJAX and CSS, no thirs party server addons or custom server modules should be used as it will be hosted on a shared server and therefore we cannot install any additional software on the server. You must use an MVC framework and a Templating system like Smarty or similar, all code must be commented and documentation for the site must be produced. Once complete, it must come with installation instructions and migration instructions just in case the site needs to be moved or installed on another server or domain. The site must be compatible on all popular browsers - IE, FIREFOX, OPERA, CHROME, SAFARI and also work on PC/MAC, Iphones and Ipad. Application must be bug tested and error free. Please read the project first and write the word "Understood". Also write your steps and suggestions to complete the project with a short description of what you understood.