Tammy, the best thing for getting the milk to drop is for Levi to eat a lot of good healthy food and for the pups to suckle. I pray the worst is behind you and that Levi and her babies start doing well.
I have shared this article on YT before and I am not sure if you every read it:
http://www.showpapillons.com/formula.htm
The 10th paragraph has a glucose solution you can make to give to the pups in addition to the milk. I have used it before to supplement a runt puppies and they always seem to really pick up on the nursing and gaining weight.