Sorry to hear you are having problems, and just to clarify I can't help with it but I sympathise with your situation intensely. I have NEVER been able to get JSGME to work properly despite spending several hours making sure the folder system was right and everything was in order. I followed the instructions to the letter but no dice. It's extremely frustrating I know!!And yes you are right, the loading screen should be changed and if it isn't, then this is a good indication that your mod has not been enabled.
Good luck, Herr Kaleun! Let us know if you get around the problem!!
Perhaps it's Starforce protected
!!