I have this sorcerer character that I use for D&D based off of Zidane from Final Fantasy IX. What I'd like to make is a race mod to play that character. Essentially, it would just be a human race with a tail (preferably brown in color). Problem is I can't seem to get the Creation Kit working in my favor because it's http://www.youtube.com/watch?v=dNFtePUgHNU

I've tried figuring out the Creation Kit, trying to make the mod by creating a duplicate of the Breton race, but that's the farthest I can get. How do I add a tail to a race, how do I get the texture I need applied to the mesh? Please be as specific as possible; I'm a complete noob with this stuff, and I'm 99% sure no one will make the mod for me.