You can find one at the following places:
Hope this helped =)
in the forset after you beated your rival and bugzy and got the farfechd
You don't! Farfech'd doesn't evolve.
you cant find celebi in soulsilver
Hey I have growlithe in soulsilver get in GTS
yOU FIND IT ON WHIRL ISLANDS.
EVENT!
you can't
you cant find him
in the sinnoh region in Soulsilver.
saffari zone
in viridian city
Mahogany Gym