The first thing that you'll see when you visit the tool is the login form. Fill in your username/password and click the "Submit" button to login.
If you don't have username/password, you can register by clicking on the "Register" tab on the top of the page. More details on registration can be found at Register.
Forgot your password?¶
If you have forgotten your password, you can click on the "Forgot your password?" link below the login form. You 'll be forwarded to a new form, asking you for your username. Fill in your username and click "Submit" button. After a while, you'll receive an email message with your new password.