Auto-login or redirect

[WeBBy]

Why is vbb 5.x so complicated, convoluted, and poorly documented???

Having gotten an auto-registration working, I am now trying to get an auto login to work.
BUT, I cannot even find out where the login script is being executed!!!

You can delete all of these:
./core/login.php
./core/includes/functions_login.php
./core/packages/forumrunner/include/login.php
and still login/logout ... WTF

I would not mind logging in through the main login form using javascript but need to change the redirect which I cannot find because it is not in any login.php file

There is an older post about auto login where they were working on:

PHP Code:

 $auth = vB_User::verifyAuthentication($username, $password, null, null);
         if($auth) {
 $res = vB_User::processNewLogin($auth, $vbulletin->GPC['logintype'], $vbulletin->GPC['cssprefs']);
         if($res) {
 vbsetcookie(COOKIE_PREFIX . 'userid', $res['userid'], false, true, true);
 vbsetcookie(COOKIE_PREFIX . 'password', $res['password'], false, true, true);
 vbsetcookie(COOKIE_PREFIX . 'sessionhash', $res['sessionhash'], false, false, true);
     }
         } 


Which they extracted from ./core/login.php (which is apparently not used), but more is needed to set the cookie since vB User is not defined.

Maybe it would work if I knew how to define the vB User.

Any help or ideas?

Thanx