You can submit the Application even if you are not logged into the system. But you won't be able to follow your activities when you're not logged in. Otherwise, press Login icon.

You can also apply if you are unregistered user. You can check Create New Account checkbox and submit all necessary info to register new account.

Press Preview icon to review the fiiled in information before submittion. You can edit or send the application at the prveiew mode.
Press Save icon to save your application and proceed later.