I am building a shopping cart that uses arrays and PHP4 sessions for storing cart data. I have everything on the clients site except for the checkout page which is on a secure server. I seem to be unable to pass the session data on the the secure server. When checkout.php is located in the same dir as everything else it works like a charm, when I move it to the secure location it can't find my arrays. I've tried passing $PHPSESSID as $Sess_Id into the checkout script and opening Session_Start($Sess_Id) but perhaps I am doing that wrong. Anyone know what I am missing? I've checked the manual and PHPBuilder.com but have had no luck. Any ideas?

Thanks,
Andrew