name rater goldenrod city, 1 street north of the radio tower in a circus looking tent
There Isn't
you dont make poffins in soul sliver
in the radio tower
no
goldenrod
jhoto and kanto regien Pokemon
you have to get it from Pokemon platinum or diamond
Happiny, into Chansey.
in the kanto region
in the cities
you cant
you dont use it it only unlocks a cave