Upgrades Plugin

Ok,
So I've followed all the steps, put all the files in the correct directories.
Now I want to be able to turn on 'Quota' and 'Edit CSS' for a upgrade option.
1) When I go to create a new package, the plugins don't show up on the plugin 1, 2, etc list.

And I think you upload them to mu-plugins, and when I did, I get an error code. Such as the one below:

Fatal error: Call to undefined function upgrades_register_feature() in /home/chewy/public_html/wp-content/mu-plugins/quota.php on line 20

Where should I put the Quote.php file at?

Thanks