As mentioned at https://www.redhat.com/archives/fedora-websites-list/2007-July/msg00098.html, there are some broken/outdated links in the "Fedora Extras Repositories for Previous Versions of Fedora Core" box. These links appear to have been removed at http://fedoraproject.org/wiki/Docs/Drafts/SoftwareManagementGuide/ConfiguringRepositories, but I'm not sure about how often those are pushed, etc. As a side note, the "Importing the Fedora Key on Fedora Core 3" section might be replaced with "Importing the Fedora Key" and the path to the key changed to /etc/pki/rpm-gpg/RPM-GPG-KEY-fedora. Thanks a lot, Ricky
For the future, this content has been folded into different guides and updated. For now, we can update the doc itself.
Reassigning to brave, new maintainer.
I believe the information on the Wiki is correct. The DocBook entry has been superseded by the Wiki. Thanks for filing the bug.