The instructions on page 1 clearly state to run bfgminer as root. I.E.
sudo bfgminer .... rest of command line
Alternatives include adding your user to the "dialout" group or installing the udev script from cgminer. Both of which are probably asking too much. Try running with "sudo" to run as super user to confirm that it is a permissions issue.
ahhh.... okay, I ran it simply with sudo bfgminer to see what would happen and they are there now:
http://i.imgur.com/Fi4wk3j.pngNow that they are mining...I'll go back and look over some of the tweeking posts in this thread I've been skipping. Thanks for your help.