April 20th, 2015, 06:47
Concerning the texture lay-out, there is a difference between the Mustang which was released under the WOP label and which was part of a Mustang package which included the H model and the Mustang which was part of the WWII fighters package. The WOP version had the complete external texture on one single texture, while the WWII fighters had 4 textures (Left wing, right wing, front section, aft section). And as Cees already mentioned the main difference between the FS9 and FSX version of the textures are the graphic format and the "_t" behind the texture name.
As the Zero mdl file has not been converted to FSX it will NOT read files in dds format.
As far as I know, the WWII fighters Spitfire has different texture lay-out than the WOP3 (Accusim) Spitfire.