Upgrade to 2.0.1 - config/autoload.php not loading

[eluser]Webnet[/eluser]
I just upgraded from 1.7 to 2.0.1 following the upgrade guide. I'm getting an error that indicates my autoload classes aren't being loaded before the page's controller, so I added

Code:

echo "test";
exit;

to the config/autoload.php and it's still loading the controller before these configurations. I'm not sure where I should begin testing as to what could be the problem, any suggestions?