Can you get any of the saves provided to work? if not you need to figure out what you are not doing correctly, otherwise a save anyone else provides will not work either.
The "23-1071_iroch_Diancie" save is a shiny Diancie by the way.
If you want a Diancie from a different wonder card then you can simply open the hashin folder in any of the saves provided and overwrite "1" file with the Diancie Wonder Card you wish to distribute.
Simply rename the wondercard to "1", be sure you are showing file extensions in Windows, so you can remove any file extension that exist. The file should be called "1" with no extension, as per the screenshot below:
Anything else is cosmetic, so if you don't want to go though the effort of hex editing the title displayed on the distributor software you can simply restore that save as described in the original post. Using the Celebi save for this would be beneficial as it will distribute regardless of the date.
We do really need more information from you to advise anymore though.