Dog Won't Nurse Her Puppies?
If mom wont feed any longer, there are milk replacement supplements and feeding bottles at Pet supply stores such as Petsmart, feed stores, etc. There is also a powdered goats milk which can be supplemented for most animals, including dogs and cats. Soft foods...
What Breed is Millie?
I tend to agree with Abigail that it she could be a pit/cattle dog mix. The blue could come from either breed but her particular markings would be blue merle in color.