A little while back I posted a guide to pregnancy, whelping, and looking after the pups....it'll be around still somewhere on the pages. I'll take a look at which page it might be on and get back to you. There was some useful advice there.
It's called "Pregnancy, Whelping, Puppies, a helpful web-article" and it's on page 11 here.
I am sure you will find a lot of help from it.