Very sorry for the delay in getting back to this! I got your PM and had a look at the site. Nice looking site, by the way.
You're correct, the images aren't iFramed, which is good. Even better, each image has it's own 'real' URL.. it's not Javascript or something that 'pages' through the images while leaving the URL the same. So, we should definitely be able to get something going for you. There's a few options I can think of after seeing your site.
Insert the tags into the gallery software itself
I know you mentioned in your PM: "I have tried inserting the tags into the gallery code and it didn't seem to read." I'm not exactly sure what you meant there. If you saw the raw {JFBCLike} tags in Joomla, that means you might just need to order the JFBCSystem plugin later (higher number) to make sure it sees the tags. If the {JFBCLike} tag is missing, but no Like button is appearing, that could be a css (or one of many other) issues. If you implement it again, let us know and we can look to see what's happening in the actual HTML
Add the JFBCLike module to the page
Since your pages are showing within Joomla with their own URL, another option is to simply use our JFBCLike module. Create it and set it to only display on your Gallery pages. From the site, using the &tp=1 parameter on your URL, you have plenty of positions that may work for the Like button: inset, right, left1, left2, left3. There are others as well, but one of those may get you started.
Let me know if any of that works, or doesn't for you. Hopefully it gets you started though.
Best of luck,
Alex