Time Machine v.1 lost file folder names all the way back to "the beginning of time"

I was experiencing some increasingly erratic system problems with my White 2006 iMac running OS 10.5.8. My guess is that these problems were due to power outages cutting power to the iMac while it was in use.

- I tried Disk Utility from the Install Disk and it cleaned the HD but when I ran Verify Disk from Disk Utility off the HD it reported errors and I continued having problems.

-- I decided to wipe the HD and reinstall everything.

--- The first thing I did was backup with Time Machine v.1 and then disconnect the backup drive.

--- After reloading the OS and upgrades I ran Verify Disk from Disk Utility off the HD and it reported no errors.

---- Skipping all the headache a reinstall entailed ... I reloaded my files from the external backup drive Time Machine backups by grabbing the folders and pulling them to the cleaned HD.

----- I found large portions of files names missing. They look to be exclusively file names starting with a number that I use to order files ( 01. , 02. , 03. ... etc) as opposed to alphabetical listing.

----- These files - so far - are all located on a single folder branch. Meaning: as I follow the folder tree down I get to a list of project folders and some or all are missing everything but the starting number. I wrote this off as something to do with the hard drive operation problem but ...

------ ... all the same backup folders in Time Machine on my Seagate GoFlex have also lost their names all the way back for 2 years, when I started using Time Machine and the GoFlex.

------ I know for a for a fact the folder names were intact before I cleaned the iMac HD since I regularly use those files.