Another good book is "Training Your Retriever" by James Lambfree (spelling?). Iy is an excellent book and i used it to train my Lab.

As was said - obedience first and formost - then short training sessions and make them fun for the dog. At first, make him understand he is your dog - and no one elses, you feed him, take him out for his "jobs" and play with him.

Good luck and keep us posted as to how it's going !!!