Wow thank you DivaVocals so much for all your help. I will do all I can to help you and others work things out! I gather that I may have been some help.

You said:

If there have been no order payment, refund, or purchase order records created this is what you will see.. THIS IS correct behavior.
I believe there should be payment records as this purchase was made after the installation of Super Orders Add on. This is why I was bringing this to your attention, because I found that statement "No Payment Data Available" odd. (The customer used PayPal Express to make this purchase.)

From what I can see what is happening is that at the end of the refund processing, the page redirects to the default orders.php. If the Optional Edits files are implemented to disable the default orders.php this causes the PayPal refunds to fail since it cannot refresh to orders.php
This is exactly what I did but to correct the issue I replaced the original filenames.php file with the original Zen Cart file. This allows access back to the original orders.php file and allowed me to do the refund successfully.

I am really looking forward to this all being worked out in the next release. As I am sure many others are as well.

If I can help in any way please dont hesitate to ask :-)

Thank again!