HELP!! Error Reading Scenario

[Stuka44]

Anyone have any suggestions. I just created a very large scenario, many hours putting in re-enforcements..... Everything was going great. Prior to sending the files to my brother, I thought I could change the name of the files. This seems to have messed something up. I can view and edit if I wanted the Map I used. Same goes for the OOB. But when I go to edit scenario, I get an error reading file message. I also make a copy of all three files. Prior to knowing it would mess something up. I changed the name on all three of these to a different name as a "back up copy" I now get the same error message if I try and edit the scenario using this copy. Nor does my scenario appear in the list. Help I really don't want to have to start over.