Go to spear pillar where you find Dialga and use it there. A stairway will appear and go up it and you will find arceus
you have to get the mistery gift and use it to get the azure flute
you can not get the azure flute in pokemon diamond, pearl or platinum unless you use cheats like action replay
to get the azure flute you have to you use a cheating device to get it because i don't know You can't get the azure flute in Pokemon soulsilver.
The Azure Flute is an event item used to obtain Arceus. In Diamond, you must go to the Spear Pillar (where you battled Dialga) and use the Azure Flute. A stairway will appear- climb the stairs to battle Arceus.
You cannot obtain the Azure Flute in Pokemon Diamond, Pearl, and Platinum without the use of an Action Replay.
You use the Azure Flute in Spear Pillar within Mt. Coronet.
To get Arceus on Pokémon Diamond use the Azure Flute to summon the Pokémon. The flute has to be played at the summit of Mount Coronet.
the flute is the azure flute
You currently can not get the azure flute. The azure flute can be received from a Nintendo WiFi event, you can get it from a friend, or you can use an Action Replay to cheat for the flute.
You use the Azure Flute to catch Arceus at the top of Mt. Coronet at the Hall of Origin.
you go to the place and then use dive and thenn go to the spot that youget the flute and you use fly, then surf, then lightening superstriker30000000000000 and then you have the azure flute!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Use the azure flute and go to spear pillar