1) First of all you have to register using your email address. Email address must be valid, because it'll be used for communication. Follow the link REGISTER.
2) A verification mail will be sent to you on your registered email. Click on “Verify Verification Mail”. If the mail is not found in the inbox, then check the spam folder.
3) After registration, you can login using your registered email address and password. Follow the link LOGIN.
4) If you forget your password, you can change your password. Follow the link Forgot Your Password?