9/14/11:

All is great with the new kids. They were only in the bedroom for 2 days before they ventured out and they get along with the dogs just fine, (they are already washing the dogs ears during nap time.) The 2 older cats are still mostly outside, except to eat and use the litter box (not to sure why they want to come in to go to the bathroom - but whatever---) They hiss at the kittens, but other than that pretty much ignore them.