AFCAD 1.1 & 1.2.2

HiI'm having majors problems with AFCAD.I have painstakingly re-created my local airport, Aberdeen/Dyce (EGPD) from scratch using A4W.I then got a hold of AFCAD to change the traffic patterns and the taxiways etc.Finding the file that the original EGPD in EURNWAFD, AFCAD wrote to the file no problem.FS2K2 fired up, rebuilt the first of the 2 indexes and crashed on the facilities file. It does this every signle time I try it.I exported the airport to a text file, SCASM'ed it (2.88) to a BGL and patched the EURNWAFD.bgl with the new one.Same thing. FS2K2 gets to 46% then resets and crashes,Can anyone help me please?Rory