Classic ASP Paypal integration

We are in the final stages of developing a full shopping site, in classic ASP, but need some help integrating paypal into the system. Currently, you can view cart, enter details, proceed to payment section Can currently select between cheque or paypal. When selecting paypal, it takes you to a screen, where you click the paypal button. This page works, in terms of listing all the products correctly, and applying tax (im not sure if theres a better way of doing it, so please look at this page also) Clicking on the button, takes you to paypals site, which appears to be working correctly. Basically, I want it so that when the user pays, the payment is made to the paypal account, and then the confirmation number is written into the database (this function is already written) The system then completes they payment by displaying the “Thank You” page on my site. So it’s a very basic integration that I require… basically just finishing off what I’ve started. All work must be tested using the paypal sandbox (as not to use realy money, yet!!) You will need to register accounts for the sandbox. I will need simple instructions on how to change the asp code in order to make it live (as opposed to sandbox testing) The pages you will need to work on are commented, and I will provide any help required. To see the work so far, please visit [login to view URL] initial username and password is: user: paypal pass: paypal feel free to register on the site as a customer... no details are kept!!