Custom PHP Scripts - Finish website

I need a project finished within a month. I have had a basic website created in PHP and MySQL. The website is about 80% finished. I need somebody to complete the project. You can see the current state of the website at: [login to view URL] I need the registered users to be able to log in, book a place on a table, and be charged by PayPal for the place on the table. I also need an administration section finished - Admins can currently edit the sites pages but I need them to be able to book fake places at tables and control registered users. Serious bids only please. Payment will be made by escrow or PayPal on completion.