Alex -
Added the code above as you directed. Am still not using a reveal page; due to the stickiness problem...since all cache's are off and the problem not remedied I'm going to forego using a reveal page for now until maybe a later version of JFBC when hopefully you'll have addressed RocketTheme/Gantry compatibility a bit more.
After adding the code, things appeared to be working OK within a Google Chrome browser, however the template still appears when viewing the page in both IE and Firefox. Browser cache dumps made no difference to the problem. After some repeated tests, the template would intermittently appear in the Chrome browser, too.
You can see on the Page, we have hyperlinked an image to our FB Canvas App. Sometimes this works normally, sometimes it loads the canvas page into a different template, even though both settings are on --default-no override--. Strange. We have the image on the Page linked to a hidden menu item that is addressed to our app at apps.facebook.com/ridgegarrett. Not sure why it loads another template, at times.
I think for the workaround of being able to get Likes without a reveal page, we can use the page as we have it looking right now. This will be OK, if we can link some additional images as we have the first one doing now and have it work correctly. If you have better suggestions of how to accomplish what we're seeking at this point, let me know.
Thanks.