Product Cart - Amazon Payment API Integration

Hello, We are looking for someone to integrate Amazon's FPS payment system in to our early impact Product cart ecommerce store. YOU MUST HAVE WORKED WITH PRODUCT CART BEFORE. We will need you to provide referecned to product cart stores where you have done work. The work on this project may lead to further work as well as we need addition changes to our cart. Please bid accordingly and know the project before bidding. If you are accepted, project must be completed and active on our server by 3/15/10 or no payment will be made.