Digimon World: Dusk

Two Questions?

1. When Can i go to The Heaven Place and Task Canyon? (I play Dusk)

2. I Completed All avaliable quests, I just completed The Gaia Origin chaellenge, I'm a gold tamer. When Will i be able to do the quest, The Legend Tamer?

1 - I don't know about Highlight heaven, i think you need to do a quest, but i'm sure Task Canyon is Dawn exclusive.
2 - After you contact someone, be it a battle, trade or match.

1. Highlight Heaven can only be unlocked through a farm quest. You need to put a cool KingChessmon on your farm, then go to the machine quest counter(There are other ways, but I only remember this one). Task Canyon is Dawn exclusive, and can't be accessed in Dusk.
2. The Legend Tamer quest is activated once you complete 3 requirements: Being a Platinum Tamer, having connected with somebody else(be it a battle, trade or match), and beating Gaia Origin.