TBreaker20: You are not supposed to do anything with the bin files, just have them all in the same directory with the installer there (which should be a .exe file). Then you just run the installer and voila. If you have some troubles trying to download the files, use the GOG downlaoder.
Optic-Blasst: TBreaker20, Once you run the installer can you delete the bin files that you first had to download?
Thanks in advance!
I hope TBreaker20 wouldn't mind me answering this. Once you've installed the game, Galaxy will automatically import and keep it up-to-date. Then you can safely delete the installer. But why would you do that, to save HDD space?
Vaugan: If I use the preload option will I be able to play the game in german language ? Because the download shows only english...
Yes, you'll be able to change language in game. In case German is not there, a language pack about 3 GB will be available for downloading right after the release.