no i did not.
The "invisible" part may be due to your graphics card. Some of the newer FSX add-on use 2048 scaled DDS or BMP fromats for their texture maps instead of 1024 scale textures. If you have a older graphics card, it may not have the "horsepower" to handle them.
But one possible *temporary* fix, that may work, is to go into the FSX.cfg (Make a back-up copy first), and look for the line "TEXTURE_MAX_LOAD=1024", in the section under, [GRAPHICS]. Change the "1024" to "2048", and see if that helps.
Another way to fix the "invisable" testures (not the same as the "grey texture") is to resize the texture down to 1024 using DXTBmp or ImageTool and a graphics editor.