How do I figure out my ID(email address) for playstation network?

[Brian]

It keeps on telling me: "The sign-in ID(e-mail address) or password is inncorrect.

 

[Cyclones3 (PSN ID)]

if your not signed in git forgot password and then it should send it to the email that you put in. If you dont know which email you put it in then you are pretty much screwed. you should know the email you put in or stuff like this will happen for everything that you do

 

[cereal killer]

You either have to make a new PSN Username or try and remember your email address and password you used when you signed up for Playstation Network.

 

[Cube Game]

EVERY BODY ANSWER MINE I'M IN NEED HELP HEEEEEEEELP!!!!!!!!!
http://answers.yahoo.com/question/index;_ylt=AiIuGW6444_LBYtFHeTvunvsy6IX;_ylv=3?qid=20081025171614AAgbWX7

I WILL

 

[BALLR 24]

You can't change it if you can't sign into the account.

The only choice you have it to make a new user and a new account.