Once installed just activate it and go Settings in the network admin dashboard to add your message!
Now you can add your own custom message to the login page in a nice pretty box, in fact you can also add your own footer as well.
One other thing…. Ever noticed most of the spammers signup up to your website and then immediately reset their password?
How darn annoying is that?
But it seems common, so why not disable the option to reset their password?
Yup you can do that with this little beauty.
So go disable the password reset and perhaps include a personal message with a link to a form or support desk where they can contact your for personal support i.e. you manually reset their password if needed.