For Graf & Sons, they will accept a signed, scanned copy of your FFL via email.
http://www.grafs.com/dealer/newdealer.php
A day after I emailed my copy, I received an email detailing how to create a new dealer account online.
ETA - For 03 FFL, DO NOT fill out the boxes, just use the email link. The Boxes are for 01 FFL only.