Mazarin,
I am not sure if your response is really accurate when it comes to save file compatibility. We are currently receiving xxxxxxxxx.sav file versions from v1.29 games played in countries all over the world.
Romania, Italy, Greece, France, Russia, Ukraine, South Africa, India, Brazil, Portugal, England (and more).
A number of the current players speak English so poorly that it is clear that Civ3 is the only common language and that their civiliopedia and other text content must be in a language other than English or the US version as you call it.
I know that the Italian V1.29 version is available and that the primary internal content variants for these version are language/text oriented.
Try to span the gap and it will open up lots of opportunities for you.
Recognize that even when Gotm17 comes out in March you will have two options for play- Civ3v1.29 and the most recent and up to date Patch for PTW. It is very likely that a new patch for PTW will be released shortly and that this patch may not be fully language compatible with the German version. Civ3v1.29 is your backup position while PTW continues to have functional + distribution + patch problems.