Check out one of these sites for more information:
http://bulbapedia.bulbagarden.net/wiki/Main_Page
http://pokemonelite2000.com/
http://www.gamefaqs.com/portable/gbadvance/code/918916.html
http://www.pokemon.com/
http://en.wikipedia.org/wiki/Pok%C3%A9mon
http://www.pokedream.com/
http://www.go-pokemon.com/
http://www.serebii.net/index2.shtml
http://us.codejunkies.com/
You cannot download Pokemon from the internet onto your HeartGold version. You have to get them within the game. However, you can get Pokemon from your in-game PC in the Pokemon Center.
You can't download Pokemon diamond and pearl, it's illegal.Better, you must buy it. :)
there isn't
well you can but you can't catch Pokemon in the game so you have to download it from Pokemon diamond,pearl,or plantinum.
Yes you can trade downloaded Pokemon over the internet.
go to a game shop and ask them if they have it or search on the internet and look for it on there
You can migrate it from a copy of Diamond, Pearl, Platinum, HeartGold or SoulSilver.
if you mean to download onto the ds there are mystery gifts to unlock and if you want to put Pokemon on to the game you must have a ds and a Pokemon diamond or platinum or pearl hope this helps
there isn't a Pokemon ranch on Pokemon diamond, its a complete other game! there isn't a Pokemon ranch on Pokemon diamond, its a complete other game!
Do you mean migrate? Make sure you have a Pokemon game boy advanced game in and click migrate on the main page where it says continue on diamond or pearl. But remember, you have to defeat the Pokemon league first. Then you get to talk to professor Oak!
You can not buy Pokemon from the game corner in Pokemon diamond, but you can in heartgold and soulsilver
all you hav to do is go to game stop, and they will have a ds download play and you use your ds, and then you will receive it