Im trying to set up Ultimate Face book working on a site

Im trying to set up Ultimate Face book working on a site but I cannot get past the App ID/ API Key section. I have followed the guide but it is still not registering or allowing me to save it.

Is there a propogation time for doing this? I have been trying for the past 30 minutes to no avail.

http://widows666.co.uk/fail/api.jpg

http://widows666.co.uk/fail/wp-api.jpg