Thank you RadarMan for the prompt reply. I have read the suggestions you made, and I understand how the layers must be arranged, but I still can not find the overlays the installation readme talks about, see below:
The newer packages contain multiple versions of the yOrthoXP overlays file. You will just pick one of them. You can delete the ones you decide not to use, or save them for later in case you change your mind.
yOrtho4XP_Overlays_XP11 - Default XP 11 roads, trees and buildings (will only work with XP11 only)
yOrtho4XP_Overlays_XP10 - Default XP 10 roads, trees and buildings (will work with XP10 or XP11)
yOrtho4XP_Overlays_HDv4 - HD v4 roads, trees and buildings by Alpilotx (will work with XP11 only)
yOrtho4XP_Overlays_HDv3 - HD v3 roads, trees and buildings by Alpilotx (will work with XP10 or XP11)
I have searched through all the files added with the custom scenery but can not find any yOrtho files?
Can you help again please?
Is this of any help.[left]How do I install X plane scenery?[/left][left]When you install a new mesh scenery you will probably have to lower its priority.