Please have a look at the wikipage http://fedoraproject.org/wiki/FCNewInit/Initscripts and change your initscripts to comply with the LSB standard. Especially check the exit status and add a LSB Header. E.g. starting a service should return with 0, if the service is already running and stopping a stopped service should also return with 0. Also check, if your service has to be _on_ per default, and turn it off in the old chkconfig line, if not. Thank you.
FYI: cobblerd is required to be enabled by default.
Looking back over the mailing list, I see no public discussion on this item. Discussion on #fedora seems to confirm this came out of the blue. As it's F8 specific (indeed, install_initd isn't in FC6), more documentation and discussion is warranted.