New facebook application can be registered using links below:

http://developers.facebook.com/setup/

https://developers.facebook.com/apps

http://www.facebook.com/developers/createwizard.php

From some reason during this process a blank page could be displayed.

Instead of upper mentioned links try with:

http://apps.facebook.com/developer

or

http://www.facebook.com/developers/

It will solve the issue!