I have a website that currently utilitizes authorize.net payment gateway and I am looking to incorporating the automatic billing features. Authorize.net's documention suggests using xml and provides the input elements necessary to create a subscription. My questions is if I gather the necessary data in a form on an asp page (name, address, credit card info etc.) what do i do to the request.form values to get them into the necessary xml structure and how then to I send them to authorize.net. Any suggestions would be greatly appreciated.