Yes, I know. I beat the game and I can`t evolve my starters blah blah blah...
Here`s how you do it and the requirements:
1. Beat Dark Dialga.
2. Beat the Guild for Graduation.
3. Complete all the events leading up to the Final Battle, the one with Darkrai.
4. Have Dialga, Palkia and Manaphy on your team, and have Manaphy tell you about Marine Resort.
5. Have your starters at the appropriate level and go to Luminous Spring.
If you have any questions feel free to ask.
EDIT: Re-did some steps.
EDIT 2: Added more.
« Last edited by One X on Jun 1st 2008 »