Sure in a nutshell, slow down, don't go so fast, read the documentation (twice in my case) and if in doubt start over.
1. download product, and following directions
2. Install and verify the plugin software is in Xplane
4. Forget trying to use the trainer, it just doesn't work (in my case and appears to have nothing to do with the actual setup in the airplane)
5. Found the document that explains step, by step how to get the screenshot to take measurements and how to edit the .ini file.
Bingo! once I had read that one key document on and verified the plugin was installed (I guess I didn't the first time) it all came together. Now have it running in many aircraft.