You got a great post from Erica with very good advice. I hope things work out with him. If not maybe you could talk to a rescue group about him instead of taking him back to the shelter (especially if it's a kill shelter). A young energetic dog like that will definitely need lots of exericise and mental stimulation. Maybe try teaching him to fetch a frisbee, ball, etc. I bet he would do great in flyball or agility if there's a class near you (start with obedience first though).

For a crate I would suggest a wire crate, most dogs seem more comfortable in them as they can see out better. (I put clips on all the edges of mine as I had an escape artist problem but haven't had any since). Leaving a kong filled with peanut butter and other treats in the crate will help keep him occupied while he is alone. Start out with him only staying in there a few minutes at a time while you are there and gradually increase the crate time plus leave the room. If he barks, ignore him, only come back when he has settled down. If you come back you are only rewarding his bad behavior (barking) by giving him attention. Try feeding his dinner in the crate, putting fun toys in there, etc. It should be a comfortable den for them. Never use the crate as punishment. My dogs all love their crates and will go there on their own to sleep often. There are plenty of people here willing to give you plenty of advice please don't hesitate to ask us any questions.

Get him into a basic obedience class soon and in the meantime we'd love to see pictures.