Have you read the No-Cry Sleep Solution by Elizabeth Pantley? It did help me to get DS to sleep a little bit longer stretches when he was around a year old. He definitely never went all night at that age, but increased to several 2-3 hour stretches instead of 45 minutes. I think the biggest change that made a difference for us was teaching him to fall asleep laying on the bed and without nursing. Then during the night he could nurse to sleep. My son is 2 1/2 and I've just recently night weaned. I think if I had tried at your son's age we would have had hours of crying. Now, though, he's able to understand night and day that we will nurse "when the sun comes up". While it wasn't easy, it really only involved a little crying (never more than a few minutes). He is still waking occasionally most nights, but he is gradually sleeping better and better. As your son gets a little older, he will probably be able to handle night weaning better.