When I installed Fly Tampa Athens I chose the P3Dv4 default folder and it installed the scenery into P:\Lockheed Martin\Prepar3D v4\Addon Scenery\FlyTampa-Athens\. The instructions for the patch said to install it into P:\Lockheed Martin\Prepar3D v4\Addon Scenery\Athens\. I tried it that way and enabled both scenery locations and this is what I got.

- Fly Tampa Athens2.jpg (208.07 KiB) Viewed 611 times
I then cut and copied those scenery folders to P:\Lockheed Martin\Prepar3D v4\Addon Scenery\FlyTampa-Athens\ and restarted P3D but it wouldn't load the Scenerio Startup Screen. I used Lorby Addon Organizer to check the scenery addons and saw that there were 2 entries for FlyTampa-Athens_LC with 2 different Layer numbers. I tried deleting the one that was in red but when I saved and closed it and restarted it both entries were still there. I went into the scenery.cfg file thinking I could manually delete it there but there was only one instance of
FlyTampa-Athens_LC. I noticed that the layers in scenery.cfg only went up to 256 where as in the Addon Manager the last was 313. I'm supposing thats because the extras are xml entries. Anyway, I started P3D again and tried going to LGAV twice and P3D shutdown both times.
Also, in the patch instructions it says Delete: Prepar3D/FlyTampa/Athens/scenery/ 4 files named ******-papi.bgl. There are no such files in Athens/Scenery, I even did a search and didn't find them. I hope the remake of Athens is coming soon.