So I am trying to make a minecraft rig and I need to skin the model. All the parts I have done so far look right, but the arm I am on is not being scaled right. Anyway to fix this?
The orientation of your UVmap is wrong and what is UP in your texture is LEFT in your model. In the UV editor, with that same face selected, press R+90+Enter and then scale it again to fit you texture. 
Your UVs for that face are rotated, not scaled bad. On the 3D window>Mesh>Faces you have the options Rotate UVs and Reverse UVs. Have fun!
That helped and made it work right, thanks