Custom Ground issue

X-Plane 2014-12-08 16-32-43-85.png
I converted my own scenery project into X Plane 10 but found that my custom ground was not showing because the default afcad was above it.

Is there some way I can have my custom ground show above the default afcad?
This scenery ''Vagar Airport Reloaded'' was originally an FSX product.