you need to find a hot spot try www.Nintendowifi.com
In Hearthome, next to the Pokemon Center.
Get a Graveler and trade it in any Pokemon center
He is in Eterna City, to the south of the Pokemon Center.
The house that is downward of the Pokemon center in Canalave city
it is in northwest solaceon town
There isn't a Space Center in Pokemon Diamond and Pearl.
You go to a Pokemon center.
Pokemon Diamond? If so yes there is.
Get a Graveler and trade it in any Pokemon center
North and west of the Pokemon center!
in platinum she is in the Pokemon contest center
In Hearthome, next to the Pokemon Center.
the trade center is up stairs in the poke center
upstairs in the Pokemon center first door
heartthrome city house next to the Pokemon center
Use items or go to a Pokemon Center to heal your Pokemon.
go to solaceon town and left of Pokemon center