First off, congrats on choosing to crate train your puppy!!
Hubby and I adopted Byron when he was 12 weeks old...he'd had very little housetraining to begin with, so we opted on crate training as well. Even so, he would still pee inside the house every once in a while, even though we'd just taken him out 1/2 hour ago, etc. There WILL be accidents, but it is important to never YELL at the puppy or physically punish him. Just be patient, be consistent, and like everyone else has said, PRAISE LIKE CRAZY when he goes outside. If you find yourself getting frustrated, just post and all the beanie-lovers will come to the rescue with encouragement!!!
Oh, and the "cue word" is also useful. Some people use "hurry up!"..I just stick with "go pee"
