Instructions
Connect the Pokewalker device to your Nintendo DS handheld console.
Insert a copy of "Pokemon HeartGold" and start a saved game. The game will automatically detect the Pokewalker device and upload the paths you have recently walked in the game.
Remove the copy of "Pokemon HeartGold."
Insert a copy of "Pokemon SoulSilver" and start your saved game. The device will automatically be detected and will upload any new data to your game.