Buy an action replay. You can find one at a very good price at most best buy stores. There is no way to cheat unless you have a GameShark or AR that is legal.
cheats
No, you can't. Codejunkies has to create different cheats every game. If you want to get Pokemon on Platinum, then use the Platinum version of Pokesav.
There are no cheats in Pokemon diamond, although you can buy action replay and get all of the cheats possible like: Every Pokemon,999 Master Balls ETC
Use cheats!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Lol an action replay will probably help
You can buy Action Replay DSi at Walmart or Toys R us and it has a bunch of Pokemon Diamond cheats on it like, you can have 99 of every item!
You cannot unless you use cheats (Action Replay)
Yes When You buy a action replay it is the latest update so it has every code. As Pokemon diamond is already out it will definetly have cheats for it.
there is no way because it is impossible
getting 999 of every thing
keep trading Pokemon with friends and train all your Pokemon to the stage where they stop evolving
Go to gamefaqs.com and you can get cheats on almost every game.
everywhere, and if you want everypokemon in the game, trade with the pearl version.