session variables between http and https servers.

Okay, here is my dilemma: I have one page, (non-secure), which sets session variables for the users address, items, prices, etc. I have the next page which is secure, and cannot get the session variables from the previous page. Is there a way to pass the variables between the secure and non-secure servers? I cannot send the information in my session variables in the url (that information needs to remain in the session). I have searched the php mailing lists about this and have not found anything that will answer this question. Any and all help, verbose if possible, is appreciated. Thanks! Keith