If you're just doing some reskinning that is a lot easier, just get some kind of computer graphics program such as photoshop or GIMP. You should already have some kind of knowledge of how to use these programs before trying. If you don't know how to use them read their documentations, and google tutorials about skinning 3D models with them.
You'll probably still want a 3D modeling program so you can work with the UV mapping of the model, but you could also reference from this thread (thanks GeneralDisarray :D) about what peices of the skin wrap around what areas of the model.
I suggest the latter (GIMP) because it is both free and opensource, just like AC. :)
You'll probably still want a 3D modeling program so you can work with the UV mapping of the model, but you could also reference from this thread (thanks GeneralDisarray :D) about what peices of the skin wrap around what areas of the model.
I suggest the latter (GIMP) because it is both free and opensource, just like AC. :)