Just wondering why he shouldn't lift until his diet is in check? I started lifting when I was eating like shit and learned along the way. I am proud of my transformation. If anything you should be preaching to start lifting and reading anything and everything on fitness and nutrition. Nutrition isn't going to do shit without the exercise. All he'll do is get fat if he just eats. You need to tear up the muscles and repair them with food and rest.
Anyways, dexcell, I know this doesn't have much to do with your question but get your ass in the gym, talk to a personal trainer, and read, read, read, and build a good foundation of strength and nutrition before you decide to juice it up. Peace.