What a cutie!! I highly recommend a basic book on puppy care to include with the puppy. As you can see already, you have many questions and you'll have many more shortly. I too don't think puppies are normally great surprise gifts as they come with a ton of obligations and responsibilities. But what's done is done and i sincerely wish only the best for the both of you.
Quite A few years back I read a book on puppies from the 'dummies' series and i thought it was quite well written and a good resource.
After puppy has had all his shots, group obedience training is one of the best things you can do to help puppy know its place.
Although you would like Apple to stop biting stuff, Apple may be teething and so the biting stuff is 100% normal. You just want to make sure he bites on the right stuff. Here's an article that may help.
http://www.pets.ca/dogs/tips/teethin...s-pet-tip-191/
Good luck!