We have had some reports of this behavior from users using Internet Explorer 9 or older on Windows Vista or older. If this is you, you might want to try downloading the free Google Chrome Browser and then logging in using Chrome and then beginning again. This solution has quickly fixed the issue for other users and they've been able to finish building their entries and submit them to the Competition Organizer with no further issues.
You probably need to return to the Help Page and use the contact info at the bottom of the page to reach out to us for support. We'll do what we can to help you out as soon as possible.