Design Integration for existing PHP Facebook App

I am a graphic designer and I want to integrate a new design on my existing Facebook app. I have already done the design for all pages on photoshop and converted them to a clickable css/html/php [login to view URL] the css rollover tabs and graphics are there, so don’t worry about slicing and designing . What I want you to do is to integrate the existing php script for my old facebook app onto the new design and convert it into a fully working dynamic app.I want well organized folders and files,so you may need to rename the old files and links to match the mockup design files. This is a straightforward task for a PHP/Facebook guru who knows what he is doing.