Slight Delay

Unfortunately I have run into a small delay with the map project I talked about below. No, I'm quitting on it, but there's a serious modeling issue which has just got me nipped:

The textures are not appearing in-game.

This isn't your typical issue where I forget to replace the .txd file. I have done the export and import procedures 100x over by now, and I'm still not having any luck with what's going on. I've put aside Collisions as being the problem, as they affect nothing of textures, so then I attacked the TXD, which I re-created, re-imported, exported it from the .img after it didn't work, and yet it is indeed my modded one. The texture names match, format matches, it is compressed, all the typical yada. This has lead me to believe that it is not the TXD files fault. So, the only thing left is the .dff which also appears to be perfect after exporting it from the .img and reimporting into Zmodeler. My guess is that something has been enabled or done to the model in Zmodeler that is causing it to export incorrectly or possibly flip / manipulate the model. The funny part is, that half of the model IS textured w/ it's correct mapping and texture, yet somehow the other half remains default. I will note that I had another issue with my second model (which I ended up fixing, somehow..) in which after exporting, the Material was still applied as it's old one, and after a few hundred more exports, it finally switched to it's new and proper material, and then the UV mapping was incorrect; a few hundred more and it worked.

If anyone has any damn clue of whats going on, please hit me up on MSN or make a shout --->
Any and all help is much appreciated. I have tested many different zmodeler versions and even completely retextured the model, but I'm having no results.