In FOG Trunk, you can network boot a registered OR unregistered host - choose “Quick Image” from the boot menu - and then select the image you’d like to use.
If you’d look at the fog cloud on the FOG web console’s login page (or any page), in the cloud it says what version you’re using. This is what it looks like:
FOG_Revision_in_cloud.png
What do you see in the cloud on your login page?