You also need to change the Skin Files, plus changing the camera to 0 not always works... in fact never worked for me. What you need to do is copy some wotlk model camera structure to the cataclysm model, and change the camera offset to point to the new structure that you copied. Also you need to change all the offset of the new structure to properly point to the new directions in the cataclysm model...

Kinda complicated, but not hard to do after you learn how. When i have time i will try to make a guide explaining how to do this.

Regards.