For sourcecoast.com, I turned the option "Integrate into Joomla Login" to no and instead did a template override of the com_users registration view.
To do this, copy
/components/com_users/views/registration/tmpl/default.php
to
/templates/YOUR_TEMPLATE_NAME/html/com_users/registration/default.php
Right before the member-registration form, add the following block
<div id="sc-registration">
<h3>Register with a social network</h3>
{JFBCLogin}
<br/>
</div>
If you have a social tag admin key set up, you'll have to add it to that JFBCLogin easy-tag as well like {JFBCLogin key=blahblah}
Then you can add styles for spacing, etc