On the page you need to add it, simply put:
{JFBCGraph type=blah}
You can also specify a site-wide default for your content in the Open Graph tab of the Social configuration area of JFBConnect. Simply put the following in there:
type=default
The default will be overridden by any {JFBCGraph ...} tags.
Finally, we put a default of "website" on each page. In the next version of JFBConnect, we'll be modifying that to put "website" on the home page menu item only and "blog" (I think) on any other pages. Again, just as a default, but easily overridden as mentioned above.
Hope that all helps,
Alex