It's triple-x again i have 2 questions. 1st question: how do you get..

Ok, I forgot how I got to 4,5,6,7 islands.

But I know where you have to go to get Ruby and Sapphire.

For Ruby, go to Mt Ember..... and keep going up until you find a guy that wants to teach your pkmn explosion.

Then go to the right and you'll havta fight a Team Rocket member.

For Sapphire, go to the dotted cave. and use Cut. then go inside.

You'll have to drop into holes in a cirtain way.

So, good luck.

Then you'll find Sapphire, but a scientist will steal it and give you another password for the rocket under ground.

Go there, and yeah.

You'll know what else to do .......

Ok,

I think you have to kill (not very accurate) the poke leage den...

Somthing happens, and somehow magically you can go there.

To get to islands 4, 5, 6 and 7, you need to fill your Pokedex to 60. Then, go to Mt. Ember on One Island. There will be two Team Rocket members in front of a cave entrance. The Ruby is inside. Once you defeat them, you'll have to go inside of the cave and search for the Ruby.

When you find it, exit the cave and give the Ruby to Celio. He will give you the Rainbow Pass. It will let you go to islands 4,5,6 and 7. You will need to go to the Dotted Hole on Six Island. The Sapphire is inside. When you find it, a scientist will take it from you and go to the Rocket Warehouse on Five Island. You need to go there, beat Team Rocket, and take the Sapphire from the scientist.

Give the Sapphire to Celio, and he will finish his machine which will allow you to Trade with the Ruby and Sapphire versions. Also, the man blocking the entrance to Cerulean Cave will go away, allowing you to go in and catch Mewtwo!