There's a little more detail on the wiki, but basically...
$ rpm -ivh http://moxielogic.org/download/moxielogic-repo-1-1.noarch.rpm
$ yum groupinstall moxiedev
Your welcome.
Seriously though... release engineering is at times both tedious and fascinating. But mostly tedious. Still, I was interested in tackling a little releng work this week before responding to Ian's first compiler review comments or continuing the verilog hacking. Now, to move on to more interesting things...