Display Facebook comments for all posts on main page

I’m currently displaying WordPress comments for every post listed on the main (index) page using the following code:
$withcomments = “1”;
comments_template();

I’d like to have Facebook comments for all posts on the main page, however I’ve read on the plugin page that “the post ID is appended to the XID, so the comments will still be unique for each page”.

Does this mean that only one comment box for page can be displayed, even if there are additional posts on the page, such as the main page?

Thanks for your help.
Steve