Thanks for listening!
Jamaal
You can check my post from some time ago regarding this, you can do a
workaround to generate the PDF invoice and download to your server and
then either attach to the email or send it to the customer browser.
For more info you can check this: http://community.freshbooks.com/forums/viewtopic.php?id=7059
Hope it helps!
Cheers,
Andres Montalban
Did this ever get released?