beagles are known for running away!! its nearly impossible to teach most beagles not to run away. get a rope and tie it around a tree, or one that goes in the ground. give him plenty of walks! and he is prolly teething and his 'biting' is just puppy chewing. give him a kong with some food inside. sometimes you can freeze the kong to relieve some of the pain. tell him OFF! when he jumps on you, if he gets more aggresive, than do dominence lessons with him. hes a puppy, and cant expect much more from him! good luck