Do you see them in the FSX "Go To airport" menu ? If yes (but of course, they are...) that means the AFCAD is legal for FSX and any other 3rd party product that is reading from it is not processing it correctly.
In any case, there's nothing unusual or strange in our AFCAD: they are 100% standard FSX AFCADs, compiled with the official BGLCOMP from the FSX SDK.
The only thing to note is that we flag them all as "GA parking" or "GA ramp", in order to get rid of the default ground vehicles, but that's a common method used by other developers too and shouldn't be a problem for any product that is supposed to display parkings from any AFCAD. If it were, that tool might not work with a GA airport where most of the parkings are supposed to be flagged like that.