Place comments in a FB group?

Stefan,
That's not something that JFBConnect supports right now. I'm not sure if there's an easy way to list / show the comments from a specific page somewhere else. That's something we are planning to investigate in the future, as there are some neat things that could be done.. but I'm not sure how possible it is to do and what tools Facebook provides to do that.

As for showing the Facebook Comments box, there are quite a few ways to place the box on your page, including the JFBC Comments module, the JFBC Content plugin, or the {JFBCComments} tag. You can use the Comments tag or module to show the comments from one page on another page by setting the href parameter. We do this in the Content plugin already for things like a blog view.. we'll show the comment box for the destination article, even though you're looking at the blog layout.

There isn't any way that I'm aware of to show comments from your site in a Facebook Group right now.

I hope that helps explain,
Alex