It seems a bit of a cheek to me that you joined the group in December...posted three on this thread today...and get 'extremely upset' when nobody replies to your 'advert'
You bought/took the dog from your sister who was not looking after it...at 78 weeks? I wonder just how long had your sister had this pup before it was taken from his mother???
Your response about NOT getting any response is shocking...and the way this puppy is being treated at such a young age is even more shocking.
I certainly hope you reported 'your sister' for not taking care of the puppy...just incase she decides to go out and replace him with another poor little soul!!
Or you may find that you have to come to the 'rescue' and 'get rid' of another one for her

Flabbergasted!!!!!!!!