Hello. All my models have multiple textures. All you have to do is edit the FPE file. Open it with notepad, go to where it says
;visualinfo
textured = Colonelx.tga
effect = effectbankbumpbonebumpbone.fx
castshadow = 0
My file was (Colonelx.tga.) Delete whatever your texture file name is. Until it looks like this.
;visualinfo
textured =
effect = effectbankbumpbonebumpbone.fx
castshadow = 0
Then put ALL the textures you used to texture your model with in the same folder that has it's .X, FPE files.
You're welcome
Koolio