Hi John,
I received a mail bringing your problem to my attention. Almost certainly you switched off or opened the sd slot before saving had completed. Just because the sd is silent, unlike floppy disk, it is easy to forget to wait until the led write indicator is off before removing power.

If you are sure all of your files are present then all you have lost is the inf file which contains all the renamed file names. Since you are seeing the index file names in the screen it seems likely this file has not even been completed by the save, otherwise some long file names would be present.

The first rule in such circumstances is never to write anything else to the card before trying a file recovery strategy. If you have a card reader it may be possible to use a raw data recovery program to retrieve most of the inf file, or to chkdsk a file which may be able to be renamed to work. However there has to be a defined data area at the end of the file and if this is lost due to power cutoff it may be beyond recovery. From the sound of your description I fear this may well be the case.

Next if you are sure all your files are present, though un-named in 001kn7 etc form, and you have a card reader, then the best course would be to scandisk the card in the reader, or run a cmd box if in XP and chkdsk the card letter. If as many files as can be saved are confirmed I would just load file by file and resave each back individually on the 7000, renaming on the save, and finaly defragment the sd card in the card reader. Just take comfort during this job in the fact you lost only your long file names and not your data.
Good luck.