Well i tried alot
i spent about 3 hrs just tryin from where this error comes ! at same time
my site image was down !
i found that i add PIN MOD and the error comes from that MOD coz PIN MOD use session.php for 4images above 1.7.2
if u r saying code again <<<<<<<<<<<<<<< is newbie
hope this help ppl who has integrated 4images with VB