Wow, what a confusing and contradictory post. You say you’re going to tell us what you got and then… don’t. Were you just waiting for somebody to say something? Well, come on, let’s hear it so we can tell you.
Oh, and for the future, please don’t start threads with titles that really say nothing about their contents.
"Found the island where the real Tidus was?" It sounds like you got the Good Ending, but did you pay attention to what was happening in the game at all? They didn’t "find" any island. That was Besaid Island and he turned at the same beach as he did in Final Fantasy X after the Fayth revived him, once Yuna said "yes" to the question of whether or not she wanted to see him again. If that’s what you got, then you got most of the ending, but you should check the pinned thread at the top of the forum for details on how to activate the "Perfect Ending."
There are a grand total of like 4 endings (I think theres 4 anyways)
0 (death) you die at the boss and the world gets blown up
1 (bad) you kill the boss and nothing happends, tidus is dead
2 (okay) you kill boss and tidus comes back and says he might disipear again
3 (good) you kill the boss and tidus comes back, he says he is here to say, and he and yuna live happily evre after
oh and it all depends on what % you get the game finished, only way to get good ending is to get 100% done
The last ending is called the Perfect Ending. The one where Tidus comes back is the Good Ending.