Ice Path or in Seafoam Islands.
Jinx is a Ice/Psychic type
you cannot get jinx
no you can trade soulsilver pokemon to black
he is not in Pokemon soulsilver or Pokemon heartgold
POKEMON SOULSILVER come with a poke walker and the Soulsilver game
Pokemon soulsilver and Pokemon heartgold are basically the same game just different versions but i do recommend buying Pokemon soulsilver
SOulsilver
Just trade with someone for it!
You can't catch bastiodon in Pokemon soulsilver.
You CANNOT LEGALLY download Pokemon Soulsilver.
You'll need to trade for it from Pokemon HeartGold. It is not avilable in the wild in Pokemon SoulSilver.
You cannot battle between a Pokemon Black game and a Pokemon Soulsilver game.