basic shopping cart, products already in database

Hey, I have a photography website, and an auto generated page, basically the page reads a folder, and displays the images in that folder as thumbnails, you then click on the thumbnail and a bigger image comes up, there are several different sizes of image available to order, ie, 8x4 * 10x6 etc and these sizes and prices are already stored in a database. Im looking for someone to create a script that takes the information of an order and stores it in to a db, and is able to create a cart to hold the info so the client can make payment etc. I will create the payment system as long as you can store the order in the database. There are 3 methods of payment, so i will deal with them. have a look at [login to view URL] this will give you an idea, go in to the albums and the smith album and see how the ordering system works. Basically, I have the image scripts and the payment scripts in place, i just need the ordering and cart system. Please DONT contact me and show me a system where i manually add "products" with a complete admin system, thats not what i want. The database you need to construct will need to hold the all the details of the order, so I can retrieve this information within an admin screen of pending orders. Will also need to generate an email to me and the customer. Very Very Urgent