Upgrade to 2.0.1 - config/autoload.php not loading

[eluser]Webnet[/eluser]
Disclaimer: I didn't set this up!!!

MY_controller.php is:

Code:

<?php
class MY_Controller {}

require_once 'abstract_controller.php';
?>

abstract_controller.php is our actual base controller that's used everywhere. I'm not entirely sure the best way to change this setup.

Code:

class AbstractController extends CI_Controller

Where should I put MY_controller.php? How should it be included so that I have access to it? Is there a better way than the catch all __autoload() ?