Warning: url is unreachable

That's very strange. Using the Facebook Linter (which tries to fetch the information from the page), it doesn't seem able to:
developers.facebook.com/tools/lint?url=h...gainst-resident.html

Is this happening on all of your pages, or just this one?

As for the images, you'll want to use the new Open Graph features in JFBConnect to specify the image for that page, or your site. You can do so in the Open Graph configuration area in the Social tab. For a default image for all pages, type:
image=http://linktoimage

For a specific image per page, simply type {JFBCGraph image=http://linktoimage} in the article or a CustomHTML module for that page.

Let me know about the other URLs on your site!

We don't have a way to automatically set the image based on the page. Facebook will try to 'guess' what the best image would be, so you're free to try that. We do have a goal to add automatic insertion of the first image of an article as the Open Graph tag. We're shooting to have that feature available in the next release, but are just hammering down the features for the next version.

We're still unsure why some of your pages aren't being read properly for Facebook. It's possible this is a temporary glitch that will fix itself, but as you can see from the Linter, it's something on their end that's not properly getting your page. I've checked your page for the proper response codes, and everything looks good on our end. We'll try again tomorrow, and you should as well. Let us know if you see any changes.

idesign,
I just wanted to let you know that we just released v3.2.1 of JFBConnect. This was primarily a bug-fix release, but we also added 2 features you may be interested in:
1) Option to add Like button to top, bottom, or both positions of an article
2) Option to use the first image in an article as it's Open Graph image automatically (thanks for the suggestion!)

Hope this helps, and good luck!