[squid-users] Can't stay logged in

[CACook]

 
Does anyone know why I can't stay logged in to this site, with headers paranoid?
http://www.cctvforum.com/
 
squid.conf:
http://pastebin.ca/2384770
 
Here's what happens when I give my username and password on the site and try to 
log in:
http://pastebin.ca/2384773