The three legend's that you can catch before the E4 are dialga palkia and giratina and i will tell you how to get them.
dialga- go to the end of the power plant where zapdos should be but instead there is an old man talk to him and he says you have to battle him and if you win you can battle a wild dialga. the hms you will need to get to dialga are rocksmash.
palkia-go to seafoam islands where arcticuno once was and there will be an old woman just like dialga you will have to fight the woman first then you can fight palkia. the hms you will need to get to palkia are strength and surf.
giratina-in order to fight giratina you have to have caught dialg and palkia and bring them with you to victory road where an old man will be there and once again you will have to fight him and once that is done you can fight giratina (dont forget you must have dialga and palkia with you for this to work). the hms you will need is strengnth.

starz155 : This will help me if I get around to playing this game. Thanks for telling me this I won't forget it and if I do forget I will come back to this thread and read what you said you are a real help. Putting your word out for no one who asked and then now they see it good luck and I hope you see this and I hope we can see each other in the face of this game. Maybe when we do you can give me some tips on playing this game to. See you around buddy nice to see a helper not a person who hogs information to there selves.

No problem I am happy to help but I'm at the e4 and they are xtemely diffucult so im taking a break to test some other pokemon hacks and see if they are intterestuing

starz155 : Yeah I here you. Well if you are doing that I have the perfect one in mind. You could try Pokémon Fire Red Generations that is a awesome Fire Red hack. It has Pokémon from the 3 generations on it. Also new rival from the generations as well. I think you would be a good player at that so try to check it out when you get the time. It is really cool game. Also Pokémon Ultra Violet Version. On there you can catch your own starter Pokémon if you want. All you have to do is talk to Oak after he tells you to choose a Pokémon don't choose one just talk to him after he tells you to.

Ok ill try ultra violet but I played FR generations and I beat the game and got the ruby but when I went to go get the sapphire the game kept freezing so  I stopped cause I guess that's as far as you can go but it would have been nice to get the sapphire and unlock all the new legendary caves