This site is being deprecated.
Please see the official X‑Plane Support page for help.
If you downloaded the scenery from the Gateway, you will not see any change. The scenery available there is already included in default X-Plane.
If you downloaded it from somewhere else, perhaps there is an extra folder in the way. Please make sure the file path is Custom Scenery > YMML Pack Name > Earth nav data, with nothing in between.
This site is no longer being actively maintained.