It's OK, you have just made a very simple mistake.
At the moment your JSGME looks like this?
It should look like this.
You have taken the data and support folders from the Trigger Maru folder and moved them to your MODS folder.
Instead leave the data and support folders inside the Trigger Maru folder. Move the whole Trigger Maru folder into your MODS folder.
Hope this makes sense.
EDIT.
1.9 is not an upgrade to 1.7. It is a totally new version.
You need to disable 1.7 first (if you are running it). Then enable 1.9.