Create Web Chat Front End to Existing Chat Database System

I am looking for an experienced web developer who can create a fancy/dazzeling front end to an already existing Android App chat system using html5/ajax/json and some sort of PHP MVC framework. The Database backend is mySQL. I need this project to start immediately and completed on time. Screens will Include 1) Registration 2) Login - forgot password 3) Main chat screen 4) Profile Edit (change alias, Icon) Must be able to change chat rooms (Already defined in Mysql tables), view existing chats and send chats. As stated, this is an existing chat system for android mobile phones that I want extended to the web. I currently have php scripts written for the android devices that return xml documents, but I was thinking you could query the database directly. Please do not bid on this if you have had no vWorker experience.