asp.net shipping calculator

Need ASP.NET Shipping Calulator - in asp.net with vb.net for real-time rate calculation with United States Postal Service (USPS), Federal Express (FedEx), UPS and Canada Post. Sort rates by price or service within each shipping processor or overall rates - based on either number of goods or weight of goods Adjust rates with your own handling charge by fixed amount or percentage Automatic combo box or radio button generation of available shipping rates from selected processors. Should be all configured - so that we just have to enter in the account id's for UPS, USPS, Fed Ex and Canada Post. Looking for a script that someone already has - as this is a common shopping cart shipping feature. Payment by GAF Escrow service only.