ASP Developer Needed for Approx. 20 Hour Project

We have a shopping cart system, written in VB Script, which needs PayPal checkout added to it. We envision this to be about a 20 hour project. The current shopping cart page will need to add a Paypal checkout button. This would then post the contents of the shopping cart to the PayPal shopping gateway. Paypal handles the transaction, then once it is complete, it returns to our website. This will need to trigger an additional copy of the order to be saved to our system. Our current site is ASP.NET 1.1, writen in VB script, and with a SQL back-end product database. You will only need to edit the VB script portion. Please contact me with any questions.