well.... no offense but this model is unusable. its way to high poly. if you want I can point you to some decent low poly modeling tutorials. Your model is 65,000 Polys when it should be for that quality, about 400 polys. I understand that your a little bit new so if you want we can guide you on modeling to raise you ability a bit.
Edit: I just checked up on carrara, and it seems that most people make high poly models with it, I'd look for a better low polygon modeler some good beginner ones include wings3d, milkshape (not free, but very cheap), and anim8or. As you get better, you should start moving up to higher level ones such as blender(free), xsi, lightwave, 3dsmax, zbrush(for normalmap creation), or maya. Ill post a list of good tutorials for modeling for you soon.
Edit2: I figured since you were using this for your game, and so everyone could have a more usable version for x-mas, I would redo it for you, it has more faces than I would have liked because I tried to keep it in the same form as the old version, (2847 polys) but much more usable than the 65000 polys.
Link: (45kb)
Knight Pics:
