279121 php cart and dbase

I need a basic php cart/ mysql database created for my website that sells 12 products. I need to maintain html coding of current product pages and only add "add to cart" button or link on product page that will then take user to a view cart php page with added product. The customer can then choose to check out or return to site (html pages) and choose other products. A working example of the type of format I need can be seen at: [login to view URL] In this example, the product page is html code. Next to the product quantity is a "Buy Now" link. This link goes to a cart page in PHP. (In example cart page is on another website, for my project it will be same website). NOTE: This is not the site to be worked on but is similar and used as an example of what I am looking for. I do NOT want to change entire site with all new php product pages such as oscommerce format. The order form needs to contain the following functions: - ability for customer to create login using their email address and choosing a password. - a field for coupon code which calculates a specific discount. (example: coupon code: FREESHIP takes $12 (cost of standard ship) off the order total - a field where return customers can input a specific code which identifies them as a return customer and calculates a 5% discount off their medication sub total. - 2 shipping options - after customer submits form, a confirmation page appears that gives a summary of the order and asks the customer to confirm or edit before final submission - a confirmation email sent to customer including a system generated order number. - the ability for me to later add shipping date and tracking number to order data which the customer can access and view by logging in. - upon future customer login, the form is pre-filled with customer details. - standard field validations. Need project done ASAP. Place your bid and I will provide more details and the URL of the site. Regards, T Burt