Easy get a cube and then right click on it's texture on the right hand side of the screen. Pick edit material. On that fist window that opens up check that part that says mapped picture then browse to the picture. You can also there adjust different mapping type and also set the quality. Bycubic is best. You then click on bumps and do it again. See page 246 in the book for that. Almost every channel can be mapped with a image using that same idea.