I downloaded your tarball a few years ago, installed it on my home server - but could not get it to work. Fortunately, I did not delete it, as I now cannot find where it is hosted, since google code closed.
I have now revisited it, after learning a bit more about apache, php and postgresql. I can get it to work, but cannot enter dates - I have not yet discovered the correct format!
Are you still working on it? If so, where are the sources? I don't know a great deal about programming, but I have been reading up on gettext. I think I might be able to do the conversion, but not the translations.
I also note that you have some basic soundex-like encoding, stored in the database. There are now standard php and postgresql metaphone() functions available that apparently work with a number of European languages.
Had you thought about using github or similar now that google code is defunct?