ASP.net EBay integration

I have been making a custom designed e-commerce site, and I want help integrating it with ebay. Program must list items on ebay as well as retrieve user information once an ebay sale is made. ## Deliverables Please download the attached files and review them for all requirements. Please go over them and let me know. I want serious coders who have experience with the Ebay API. The program must be very robust and reliable or it is as good as garbage. any details about exactly how you will accomplish this project or any ideas for improving it will definitely make your bid stronger. thanks for your time, Evan