You have to complete the Sinnoh Poke`dex if you have platinum, diamond, or pearl. Then talk to Prof. Rowan.
you cant migrate Pokemon from color games sorry
you cant
you cant. you have to migrate them from Pokemon emerald
you cant you have to migrate it from Pokemon firered/leafgreen
you cant you have to migrate it from Pokemon emerald
you cant you have to migrate
You cant, you have to migrate it.
You cant. You have to migrate it :)
you cant
you cant unless you migrate
You cant. you can only send to pokemon white
You cant unless you have a national pokedex and migrate a pokemon.