Actually, the file it was looking for doesn't exist. The error message said FILENAME_ORDER_EDIT couldn't be found. The file inside the package I installed is edit_orders.php, inside the admin directory. What I am assuming is that the order should be reversed on the changes that are made to the admin/orders.php file.

The file in question is called for when I click on the edit button in a customer's order.

I didn't see anything that looked different when I pulled up a customer's order, so I'm assuming that the access that this file creates shows up when I click on the edit button.

Thanks for your help.