Lots of times you will also notice that parts of the vehicles are simply missing its texture and thus, those parts are invisible when you try the vehicle in the editor (the SHOWW2 Sd.kfz. 7 and Sd.kfz. 10/4 both suffers from this "disease")
Here's a little tutorial how to get back the textures form SHOWII vehicles imported to FoW.

I will demonstrate this tutorial at the t-26 tank.

First do all things who are described in zeke wolffs tutorial

http://www.digitalmindsoft.eu/forums...php?f=12&t=650

You have to know that the tracks how it is like in the t-26 tank case are separtaly safed in SHOWWII. You can look after the file if you open the specific .ply file with a text editor. You have to look after something like that

-/Texture/Common/Animation/track_light.tga.texVERT4
Thats for the texture.

The next step is to make this path in your mod.
Then open the game.pak from SHOWWII and look after the two files. One is a .tex file and the other is a .bmp file but i think you have to change the name of the .tex file (in t-26 case from "track_light.tif.tex" to "track_light.tga.tex". Copy this two files in your new created path.

Start the editor and have fun

IT IS ONLY FOR MISSING TEXTURE. IF PARTS OF THE VEHICLES ARE MISSING THIS TUTORIAL CAN'T HELP YOU