I have just tried using yum, and the above mentioned repository seems to be broken. When I run yum it tells me that it cannot find repo.xml in the fedora-3-core listing of my yum.conf. This is in correlation to http://download.fedora.us/fedora/fedora/3/i386/RPMS.os
It seems that if you go to that repository through the web it does not have its "repodata" folder. I have gone around to rpm.livna.org and the other fedora.us repositories and they all seem to have this "repodata" folder.
I am just wondering whom I could contact about this...