What I am saying is you can check things yourself
Make sure in
VB your cookies are set to this
cookie path /
cookie domain .cadillacforums.com
Make sure photopost is set as this
cookie path /
cookie domain .cadillacforums.com
cookie prefix bb
vblicense number in photopost config-inc.php file needs to be set to license number not customer number. You can find this at top if most
vb files. Look at your config file
Your login looks integrated to me but if you keep getting a loop in admin trying to get in there it usually means you have forgotten to specify the vbulletin cookie prefix in photopost in your case bb
You can change these values in the settings table settings 171-173