projection painting in 2.71

I am attempting to project paint the textures on my mesh model and all the tutorials I find on youtube are in an older version of blender, so I am getting a bit lost. when I unwrap my uv map then add another I guess you would call it a new map to line the islands up to the texture in all the videos it allows you to male each indivitual little map of say the head and the chest and so on but in 2.71 I find no place to name the map when i add one from the uv maps tool dock should I be adding a new image every time and unwrappong on that instead of adding one from the uvmap dock?