The 'mirrorlist' link is not a valid link ( any more )
This one should work : ( i386 )
http://apt.sw.be/dries/fedora/fc4/i386/RPMS.dries/
I.e. /etc/yum.repos.d/rpmforge.repo > >
uncomment the line mirrorlist with a hash mark ( # )
... and use this line as the 'baseurl' :
baseurl=http://apt.sw.be/dries/fedora/fc4/i386/RPMS.dries/
...