There's another nifty trick to curb the biting. It's a spray called Bitter Apple, available at most pet supply stores. It's a really nasty (but not harmful) tasting stuff, originally designed to stop fur biting and things. Arthur, my rotti pup, is starting to grow out of his biting stage now (thank goodness!). I've used bitter apple with both of my puppies and it works wonders. There's 2 ways to utilise it... If Maggie bites your hand you can either a) give her a stern NO! then spray your hand/arm with bitter apple. If she goes to bite it again, she'll get a nasty surprise! That's what worked with Charlie when he was a pup. With Arthur, what's working best is b) A stern NO! and a spray of bitter apple in his mouth. He sits and goes plah plah plah for a minute, then instead of biting he gives kisses.

It seems like you're trying to work with Maggie instead of just giving up with her, and that's a good thing! Work with her every day and be sure to nail all inappropriate behaviour now so she'll grow into a well-behaved dog. Training classes are always a good idea.

Good luck and keep us posted!