Agora-Project - Omnispace

Hello,
Agora-Omnispace is really the Software i am searching for... but i think it is - indeed - very tricky to install/ configurate :?
4..5.. times i tried to Install German language... IMPOSSIBLE...
I tried to copy "english.php" in "Agora/App/trad" to "deutsch.php" (without any changes!), and ...