Re: F15 update failure
That package should have been removed ages ago (unless you haven't updated in a long time). Rawhide is now F16. It should have been replaced by fedora-release-15-3(noarch). You don't say if you want to be running rawhide or F15, so, I can't really tell you what to install or what repos should be active for you. I'd remove the fedora-release-rawhide app and install the fedora-release-15 app (if you want to be running F15) and see if it solves the problem. If it doesn't, then check in /etc/yum.repos.d and see if the correct repos are enabled/disabled and try updating again.
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