@Zeniar
I'll use the english version as an example to help you.
1.) Download darkReq 0.3.8.0.zip and darkReq_En_349.rar and extract them to your Requiem folder (I believe the default folder is: C:Program FilesGravityRequiem)
2.) Open "darkREQ.ini" It should exist already, if it doesn't you can just make a new one. (NOTE: It must be named "darkREQ.ini")
3.) Add this line to darkREQ.ini
What to Add to darkREQ.ini
[Param]
Dat_File=darkReq_En_349.dat
4.) Save darkREQ.ini and your good to go!
5.) Start Requiem, log in, alt+tab out, start darkREQ 0.3.8.exe, and enjoy!
NOTE: Every time there is an update you must do this.
Hope that helps bud.