Format signup confirmation message

So the email confirmation was not working or at least not working fast enough so I activated the "Remove Email Verification" plugin. I now get a message (like the one shown in the screenshot) at the top of the confirmation page. I was wondering if there was a way to have this shown in the body of the page (Under "Sign Up Complete!") or in a popup window. I don't like how it is inserted above my page heading.

Thanks