[calorie]

Try out the example script, stick it somewhere outside your forum directory, and see if it does like you want, as that is probably the best way for you to evaluate it. If you like it, then you'll need to wrap the PHP gallery files some way like username is wrapped in the example script, assuming you want to protect PHP files outside of your forum directory while having the look of a vB page. If you are just looking to determine whether someone is logged in, nothing fancy, then you can stick the following atop the gallery files, and this will work fine for those users who accept cookies:

define('FWD','/full/path/to/forum'); // <-- set this !!!

define('BWD', (($getcwd = getcwd()) ? $getcwd : '.'));
chdir(FWD);
require_once('./global.php');
chdir(BWD);
if (!$vbulletin->userinfo['userid'])
{
	echo "Not logged in!";
	exit();
}