When on the firewall configuration in anaconda, I changed the firewall settings 
to how I wanted them, then hit the back button to go back and double-check that 
I had entered the correct IP on the previous screen (Network Configuration).  I 
then clicked "next" on the Network Configuration screen to go back to the 
firewall config, but all of my changes we gone.  It had reverted to the default 
Red Hat firewall config.  It looks like the changes aren't remembered unless 
you hit next.  The changes should be remembered whether you hit "back" 
or "next."

How reproducible:
Always