Hmmm....
One other thought, you're most likely gonna pay ASP.net guy a few hundred at least, probably more since its a rush job.
They have a few free, and lots of pay($50-$400) prefab shopping cart controls here.....
http://asp.net/ControlGallery/defaul...y=6&tabindex=6
Unless you have very specialized needs, this might be the cheapest, fastest way out....