I installed BlueGriffon a few weeks ago and this are the right commands to install the recent version on Fedora 16 64 bit:

yum install cairo.i686 pango.fc16.i686 gtk2.fc16.i686 libXt.fc16.i686 oxygen-gtk.i686
yum localinstall http://bluegriffon.org/freshmeat/1.3/bluegriffon-1.3-1.fc16.i686.rpm

Regards