If you forget your username, send an email from the email address associated with your account to email@example.com
If you forget your password, click the "Log in" link on any page of
your site and then click the "forgot password" link. A new password
will be set to the e mail address associated with the account.
Login using the new password.
Once logged in, you can change your password by clicking the "My Profie" link at the top of the page.