I started to install it, just to help you and see what it was all about, a lot of people love it, but it's not really a mod that interests me, I don't mind that it's only German, but it's not very stable, It crashed twice starting up, and it apparently has issues via Steam because it's got to make sure the base game is authorized to be run, so there's an authentication layer bit that isn't present on the standalone Oblivion, and my games are installed across multiple drives not all under one Steam library under the Steamapps tree. Yea I'm sorry, by best suggestion now is to ask those guys oven in the Nehrim discussion here on Steam.
