I'm not sure I understood everything but I'll try to help.In order to install the edain mod properly you must have
-a working copy of BFME2
- a clean, unmodded, copy of ROTWK (2.01)
-the launcher
Once installed your BFME 2 version must be 1.06 or it won't work. You cannot add anything to the ROTWK including the 2.02 patch since it was fan made. So uninstal everything, delete the leftover folders and reinstall everything so that you end up with a clean version of bfme2:ROTWK.