Apparently this forum will not allow me to upload any file with a "BGL" extension on it. I have edited the AFCAD so the glideslopes are now working, at least for me. I have not had anyone else test it out.
Any chance you could post it on Avsim/Flightsim. I expect it will not officially be supported but at least your trying which is more than can be said for the producer of this product who seems to have gone A.W.O.L from his own website. I have flickering grass textures as well but I'm not holding my breath on that one either.
I have been playing AFX past weekend and I think I have fixed the glideslope. More testing should be done but the file is available here, http://www.megaupload.com/?d=DT5CEXOU. I have also edited some parkings. Since I am a total newbie in AFX. MAKE SURE you back up your old file before trying it. Hope it helps.