Go to the Pal Park and you can 'catch' the Pokemon you migrated from there.
You cannot catch Deoxys in the wild. It'll need to be migrated.
All those pokemon would need to be migrated to Heartgold/Soulsilver.
No, Pokemon can be migrated from Soul Silver at any point, just as long as there are at least six Pokemon in the storage boxes.
You can only catch lugia if you migrated it from firered or leafgreen. If you want lugia get one from heartgold or soulsilver version.
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
No.
You can't catch bastiodon in Pokemon soulsilver.
You CANNOT LEGALLY download Pokemon Soulsilver.