What is shown and such depends how you have things configured with vb
. First off the way you have typed your cookie prefix is incorrect. It is bb not BB. The default cookie prefix for vbulletin is in the config.php file in vbulletin. If you post a url and a test user login I can tell you more accurately what is set incorrectly.
Also check in your config-inc.php of photopost to ensure you have the vblicense number entered where asked and not customer number. This is integral for user login.