First time my cats (I have 2 boys) met my 8 week old puppy (their 1st dog) Ruby was in the crate (with door shut) while they came for an inspection so they could get used to this new interloper. In the early days as you need to keep an eye on the pup for other hazards it may be worth putting the pup in the crate or a pen anyway if you are in another part of the house or at least shut them in a room if there's one so that the pup is safe/secure out of harms way.
Make sure your cat has an escape route or several around the house so that she doesn't feel threatened either. In the end I have a stairgate the cats can get over but my dogs can't and so the cats have the run of the upstairs and will come down to join the dogs if they want to. I found all this was very important in the early days so that the cats had their own safe haven and didn't feel pushed out (my sister didn't bother with any of this and her cats moved to the garage for months).
Try not to let the pup to run after the cat as this could lead to confrontation. I useed distraction techniques as far as I could—squeaky toy or something other noise. Mine will still chase the cats sometimes but methinks my cats like the game of chase as they've always got somewhere to jump up on to if they want.
One thing I found was really a must in our house was to keep the cats bowls at a level higher than the dogs can reach. In my case the cats get fed on the 1st floor landing. Spaniels are notoriously greedy especially some pups and my cats would never get fed if I left all their bowls together. Also this means that I can regulate greedy cockers food to stop them getting fat (now that one of them is spayed) and also my cats get fed dry food ad lib and like to take their time so it wouldn't be fair to deprive them of food also.
Cats will only be territorial with other cats. The only threats are when cats are confronted with nowhere to escape to.
It will take time and you'll find being at home most of the time house-training a pup and dealing with situations as they arise will make 2 weeks even seem like 2 months.
Your cat may only just tolerate having the pup around but lead a peaceful existence. I've heard many a story on other websites of cat hating greyhounds who's new owners put in a lot of hard work and time into introducing the cat to the dog (basically not forcing it) and months down the line the cat can be seen occasionally sleeping with the dogs.
Of my two cats Eddie was the most reluctant convert to having dogs in the house. He wouldn't sit in the sitting room for weeks after I got the 1st one, but I didn't worry as he was more than comfortable upstairs (food, warm bed and water and even the litter box). If ever he saw them he hisses and if cornered will wallop them (but hasn't yet scratched). This afternoon while Wilf (7 month old roan) 'danced' round him in the kitchen trying to get his attention Eddie stood very still and cocked his head forward for Wilf to give him a wash (which he does a lot of at late—Wilf obliges of course until naughtiness takes over his sensibility
).
