pcb currently doesn't own the %{_datadir}/%{name} that it creates and puts files under. It should.
I've updated the spec file accordingly. However, for the time being my cvs access is restricted at my place, I can't upload it for the next 2 weeks: here is the updated SRPM and I'm leaving this bug open till I commit it to CVS. http://chitlesh.googlepages.com/pcb-0.20060822-6.src.rpm
Build successfully, should be available as from tomorrow.