Karen,

Happy congrats on the new addition. She's adorable.
On the issue with the kitties, Rachel suggested the "Leave It"
command & that's exactly what I did with Smokey & Buddy.
The stern NO, with" Leave It" as Rachel explained worked very
well for us too. She's bound to be a little nervous still & it will
take some time till she learns the kitties live there too. She
might even be a little afraid of them.Everything's still so new
for her right now. You might want to sit with her on leash for
awhile and went the kitties come around her, give the command
and offer treats right away if she stops the barking,etc. Reward
the good behavior & prevent a bad habit from forming. Best of
luck getting everyone acquainted. She's a cutie for sure.