How to fetch a userid

[Bandit8007]

im sorry i mixed up the first soultion... that was posted in here

the fatal error that takes place is

Fatal error: Call to undefined function get_currentuserinfo() in /var/www/Forum/database/releases.php on line 323

and this is what script does use now ( but thats wordpress code)

322> global $user_identity;
323> get_currentuserinfo();
324> empty

so it wont work with vbulletin

so im trying to get a work around to get the userinfo....