I think you meant to link here;
http://www.awcinfo.com/fordfibreglassinfo.htm#xh
The side-skirts and anything to do with the sides/rear should fit XD-XH as they are all basically the same. The XH front is totally different and will not retrofit XF without serious work. It's not just the outer panels the whole front sub-structure is that of the E-series sedans.
Hope that helps.