I believe you can find the default copy in:
/usr/share/navit

I think there is another copy somewhere?? I forget though. Do read through this thread http://www.internettablettalk.com/fo...858#post281858

Lots of good info there and links to several more resources. I'd start with the last 6-8 pages perhaps as they have the most recent info.

*Whoops wrong thread.