Session Vars not staying active

Hi all, I am having trouble with session vars. I'm trying to implement the credit card direct pay method outlined here... http://developer.authorize.net/api/dpm/ - Basically, page 1 is my form that goes outside my site to the cc gateway company then comes back with a result... (PG2) Problem: if I try to create session vars on page 1 - they don't work on page 2. Am I correct in thinking that when this process leaves my site and goes to the gateway, then returns, it is similar to creating a new session and that is why the session vars don't remain active? Thanks in advance. -- Thanks, Dave - DealTek dealtek@gmail.com [db-3]