When vBulletin can't find the cookie data, it relies on the $vbulletin->session->vars['sessionurl_q'] value in the request URI.
Thanks, that was so easy once you know the var, got it to work fine and now working on adding a admin cp menu item to get a moderator to modify data from there. Once this is done that will be a application ready to deliver. Once you learn to work with VB it get easy to code for it. Having this forum is of a great help.