CSS and CMS Upgrade and Dev Upgrades

I need some one that can upgrade a website script to completely allow design changing with CSS from the member Admin Panel.I want the user to be able to log-in to website and be able to drag and drop the module where ever he wants it. A user must be able to log into his website and change there, background, header (Image, Size or Color), logo, color of tables, sub backgrounds, Title header and content. etc. The user must be able to complete edit and change content of every aspect of the web site. In the Header, body, menus, footer, profile, etc., with the CMS system. Design is a 3 column website. User Must be able to decide where he wants to place each module in the left or right column from the admin [login to view URL] - Login (Top Right) Main Menu (Top Left) 160x600 Banner (Left Middle)etc. Each section is a module that user can decide to incorporate on his website. Also he can decide on which pages each module can show up on. Again - User must be able to control their entire website from their member admin control section. Development Upgrade - This is an already existing script that needs to be upgraded to work within modules. So I also need compatible <div> work to remove tables in some old code. Also will need to add some community functions so users can have there on profiles,, URLs, Photo, and content, This project can only take you three weeks no more than 4 to complete. Must show me sample of your work and discuss your actions to get this done quickly and on time before I hire you. Website has an already existing database structure that need to be updated. Thanks