passing form values

Hi I have a slight design problem. I have some form values (user details) which I want to pass to a web page which is two pages away. I.e. I have the variables as hidden values in a form (username, address, password etc) and the user submits these and cc details. If the credit card processing centre gives a yes answer to processing the cc transaction the address details are added to the db if not they are lost. At present the cc script is a single include on a blank page which runs for a couple of seconds and then the user is transferred to a success or failure page depending on the cc transaction processing companies answer. Problem is how do I maintain state of the users address... values for the two pages. 1. make them session- global values which seems a bit overkill 2. Make the cc an include and post back to itself. 3. Is it possible to have a hidden form which runs itself so carrying the form values to the final page. I am sure there is a simple answer and thanks in advance. Hope I have explained it OK. Andrew