Chat / Code Collaboration project

I have a working php/html code that basically create on-the-fly chat rooms (channels) & allow users to chat. I want to extend it to do the following: 1. Login / Logout: UI has been coded, but function doesn't work. You must finish it 2. Forgot Password: UI has been coded, but function doesn't work. You must finish it 4. If a channel already exist (ie. new user join the channel), the script must retrieve previous messages & load them automatically 5. Password-protected channels must be supported 6. Save messages asynchronously to a database You also must modify the sample to allow users collaborate (in addition to chat messages) via ActiPro Silverlight SyntaxEditor. Full requirements are provided in the attached file: [login to view URL]