[dzineit]

This is how I fixed the problem.

Ill try to show tidbits, because it is integrated with some other site im doing.

Ignore MID in the sql code, thats something I added to th Vbulletin database.

$license = your license number
the $salt I hard coded sicne I am the one adding users to the database. So I know the salt.

function logintoforum($userid, $pass_plaintext, $salt, $license){

$SQLCODE[0] = "SELECT * FROM `user` WHERE `mid` = '$userid'";
$QRYCODE[0] = mysql_query($SQLCODE[0]) or die(mysql_error());
$ASSCODE[0] = mysql_fetch_assoc($QRYCODE[0]);

$password = md5(md5(md5($pass_plaintext) . $salt) . $license); 

setcookie('bbpassword', $password, time() + 14400);
setcookie('bbuserid', $ASSCODE[0]['userid'], time() + 14400);

}

Are you still trying to register the user with an external script into Vbulletin?