ok let me explain it in better detail..
After dialga is defeated, and your back home, you will eventually pass the Graduation exam. Once thats done, you'll go on a mission to Surrounded Sea. thats when you pick up a Manaphy Egg. but, when it hatches, it will want a Blue Gummi. so be sure to have two Blue Gummi's after the first one is done, do more optional missions, and it will want another Blue Gummi. after its then getting sick, you'll go to the Miracle Sea. and find Phione. but you'll have to fight off a Gyarados. once defeated, you'll receieve Phione's gift (Phione Dew, i believe) then Manaphy will be better. then the next day, Chatot Manaphy, You and partner, will be on the Beach to send Manaphy away with a Walrein. Then, missions later, you'll encounter a problem with Azurill. he wont wake up. then you go on a mission to find Drowzee in Mt. Travail. then, you'll see Cresselia once again, and then escape from the Nightmare. the next few days, Palkia will show up, after talking to Lapras about Spacial Distortions. once then, Palkia takes you to the Spacial Rift. there, you must defeat Palkia, and enter his Dream. "Cresselia" shows up. and tried to finish you off. then Cresselia shows up also. but its the Real one, the first one is Darkrai. after thats done, you'll return home, to get prepared to go to Dark Crater. Darkrai's location. at first, he's difficult to fight, because if you have a Pikachu as a partner, his Electrical attacks get drawn to Rhyperior. which is bad. so after you defeat Darkrai, he tried to escape to the Past or Future. but Palkia shows up, and interjects. causing Darkrai to have the same thing to happen, which he caused to you. Permanent Amnesia. then, do a few more missions, and Manaphy Returns, after Cresselia joins your team. then Manaphy will say he found a Pokemon Paradise. Once you find Marine Resort, you are now fully capable of Evolving once you recruit Palkia and Dialga, after Manaphy joins you.
Edit: My hands hurt.. >_<
« Last edited by poke.addicted on Jun 1st 2008 »Yo.