
Hy lynnh and welcome to the forum :)
I'm sorry that your first post has to be one looking for advice on your new puppy - early days are so exciting but don't need this type of climax :(
Anyway, onto pupster! At least she still has meds from your vet to work on any bacterial problems however as we have a bank holiday w/e fast approaching I'd suggest that since the little one is still having very loose stools (and as a result losing much needed hydration) that you take her back to your vet tomorrow for an update and his/her further advice.
Pups can get upset tums when they go to new homes through the stress of leaving mum, siblings, familiar surroundings etc and if any great distance from the breeder's premises the water supply may be totally different and this can affect their system too. That said, this little one doesn't sound as though this has been a classic case of normal 'changes' in pups first few days but hopefully the ABs will have already started to kick in and kick out any bug this little mite may have picked up.
Over feeding can also very easily upset tiny tums so ensure that when you're offering food it's only tiny amounts, especially since her tummy and bowels will probably be easily upset just now. The pro-kolin should help this settle of course but again, vet knows best.
When at the vet I'd also suggest asking for some rehydration sachets - these are powders containing vital minerals, salts, etc and can be added to your pup's drinking water to help keep her hydrated if this problem is likely to last a few days more. (Always handy to have some in anyway :) )
HTH a little.
please update when you can and give that sweety pie a hug from someone who just got all broody :-p
regards, Teri