The patch is out of date. CentOS-4 is now EOL, too.
It's possible the right URLs are
http://vault.centos.org/4.9/os/i386/CentOS/RPMS/
http://vault.centos.org/4.9/os/x86_64/CentOS/RPMS/
FWIW: upstream is http://www.steve.org.uk/Software/rinse/
If the bug is still in that hg (as this is), you
** Attachment added: rinse.conf.patch
http://launchpadlibrarian.net/17921056/rinse.conf.patch
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Wrong server path for CentOS-4 in rinse.conf
https://bugs.launchpad.net/bugs/273984
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