Heop someone can help with this.. involves sessions.

Hi Guys, I really hope you don't mind the OT post but I've looked everywhere and can't seem to find a solution to my problem. I am passing a var in a session (not in the URL) to my secure checkout area and it's not capturing the variable. I know there is a problem with using sessions across non-SSL and SSL but I was hoping someone would have an idea as to how to accomplish this? Both domains are setup on the same box.. the secure SSL area is secure.mydomain.com Any ideas? Thanks! Aaron