I have a question for the ps3...?

May be...

how do i change my online name... i went to the edit online profile but the only thing i can change there is my avatar... please help...

Currently there's no option that allows you to change your PSN name, you will have to make a new account if you wish to have a new name but doing that will mean you will have to start again online with your games because your stats, etc cannot be transferred over.

i'm not sure you can change your name, you can just make nother profile, the PS3 doesn't keep track of games played etc so you wont lose any content.

Sorry, once you create your PSN ID there is no going back.

You can't change your online ID! You need a new account if you want that.