congratulations!
the mum should do all the feeding. you could take high shelves out so mum would have no choice but to stay down. it is important the babies have either mum or dad to snuggle up to so they keep warm.
if mum keeps running away from them, have her checked by a vet - there's a chance she has mastitis and as the babies have a full set of teeth, it can get quite painful with them trying to get milk out of already sore boob.
don't worry if she doesn't nurse for the first day or so as the milk might not have come in yet.
you need to weigh the babies every day if you can - the best way is to get a scale that weighs in grams so you'll see if they're losing weight (again, it's normal for them to lose a couple of grams in the first 48 hours but after that they should be steadily putting 1-2g on every day) in which case you will have to supplement feeding. with only two kits though, you should be ok and hopefully mum should do all the work. if not, let us know, we'll help out with hand feeding1