You can upgrade your miner for an extra colony ship, which well help you in the colony rush.
edit: Loup, we must have been writing at the same time. You're too fast with the being helpful thing.
As well as the time to do the research as to the version of game he has posted 
Prescott, untill you install Dark Avatar and/or Twilight of the Arnor, the miner comment won't help you. That was a feature added in the DA expansion.
thanks for the advices. Furthermore I'd like to downlaod the most recent version (2.0?) of Galciv in English as fast as possible. I am new on this site so could You tell me how can i do this?
As for this, I'm not 100% sure on the localized version you are running, but the English version's patches can be downloaded via a program Stardock has called Impulse. You must have the serial # for the game in order to register it to get the patches. Here is the link to that program, note it isn't like other installation prgrams (Steam for example) that it isn't required to be running when you wish to play the game. You just DL or patch through it, then close it until you want it again.
http://www.impulsedriven.com/?site=GalCiv2
*edit*
I just thought of something about your region and expansions. I've seen many posts around here talking about Kalypso (regional company for you I guess) is bundling the expansions together with some languages. I think German is already available, perhapes more.