I have written a quick HOWTO for people curious about obtaining and compiling this module. It can be viewed at:
http://railwave.com/technical/pdc-ultra.php
This is a HOWTO for rebuilding the pdc-ultra module for kernel updates. I also hope to post a HOWTO for building a boot disk with this module in the near future. For now, I have made a driver disk image available for download at: http://www.railwave.com/file/fedora_fasttrack.img.
This is my first public HOWTO, I'd appreciate any feedback you might have.
-Matthew
-- Matthew Walburn, RHCE