invisible creature model in ck

[juvantae]

I imported an obj and exported it to a nif through blender, got it textured. Everything looked good, then I tried it out in the CK. The nif is a new creature i found the model off a blender site i got a fitting race made it a armor set, etc, and it shows up in the little preview window just fine, as i show in the pics, but when I dragged the enemy into the Render Window, he is invisible. he's there and everything but just cant be seen. Not sure why, can anyone take a look at it for me? if any1 has experience in this sort of thing, these are all the files

 

 

 

 

a5mi4-ieig1.ddsa5mi41-ieig1.ddsSmilingTitan1.nif