@Mark, Sorry that was poorly explained. The plugin is working fine. I have updated the facebook.php file and is still working fine. However, I did get the same email from Facebook today stating "fix within 48hours etc". I am not sure if updating the facebook.php file fixes this legacy authentication issue of if it is only a perceived issue on Facebook's behalf. Either way they sent me an email and it is their policy, so if anyone has a fix, please yell out.

Thanks for taking the time to respond.

@Mark Bridges - I am actually using http://community.elgg.org/pg/plugins/project/595745/developer/MisterBridges/facebook-connect-for-173 right now but I still rx'd the notice from Facebook.  Regardless, thank you for your comment.

@Deep Shah - i've changed the Facebook.php file, thank you for sharing the link.

@Nick - Let us know what happens, i'll do the same.

Cheers!

As you can see, it is about 8 days since the original post. I have updated the facebook.php file as stated above and have not had my site login blocked. I don't know if this fixed the problem or if Facebook haven't gotten around to blocking it yet. Hope it is the former.

Anyone have any suggestions?

Figured out how to change the defaults - riverdashboard directory then make adjustments in the index index.php but you also need to make some small changes to the nav.php file.  Hope this helps someone else out.