Retexturing creatures help

[Billyfighter]

So I decided to retexture some creatures from the game, I've been attempting this since the beginning of morrowind modding, always with the same result. I put it in the editor and it says "No animation group, morrowind will crash!" I cannot click on the Animation button to select which animation loops to use since it's grayed out. I figured since I may of edited the creatures with Nif Texturer that it maybe lost the animations, which isn't the case. I recently downloaded Nif Skope which clearly shows all of the mesh animations no problem. So what exactly am I doing wrong? I've never been able to figure out how to edit creatures and put them in the game with their working animations. Any help would be appreciated.

Edited April 29, 2017 by Xori

[Dragon32]

Have a look at this one - Diamondback Kagouti. You need to do some things with three model files not just one.