John, this is what I mean:
I click this link
http://somedomain.com/track/MzE3doWTf/
I'm now on the tour page where the link in the address bar looks like this
http://t1.somedomain.com/main1/?nats=MzE3doWTf,0,0,0,0
Now, to get to the 2nd tour page I click "continue" and that mouse over looks like this, and on that 2nd tour page the address bar looks like this
http://t1.somedomain.com/main1/main_p2.php
So it seems a cookie was set from that first page I clicked. Is this correct?