Basecamp data Files

I use Basecamp with my Nuvi 2595LMT and I have had a hard disc crash on my laptop.

I have rebuilt the laptop with a new disc and installed Basecamp again but all my routes and American trips are on the old disc.

This old disc is still readable but I am unable to work out which of the files contain all my routes, POI, etc.

Can anybody help and advise me which files I need to copy from the old disc to the new one?

I found some .GDB and .GFI files under

\Documents and Settings\User\Application Data\Garmin\BaseCamp\Database

where there are three subdirectories 4.0, 4.1, 4.2 each of which has these .GDB and .GFI files but when I copy these and recreate the path it doesn't seem to acknowledge them

Any help would be appreciated.