[Yum] Headers Not Downloading

[Frederic Herman]

I have installed yum and initially was able to download headers and 
packages.

I'm running yum from rpm:     yum-2.4.0-63.rhfc4.at
OS:   Fedora Core 4

When I run  yum check-update, I see:

yum-2.4.0-63.rhfc4.at
Press any key to continue...
[root at fluffy log]# yum check-update
Setting up repositories
dries                     100% |=========================|  951 B    00:00
atrpms                    100% |=========================|  951 B    00:00
livna                     100% |=========================|  951 B    00:00
jpackage-generic-free     100% |=========================|  951 B    00:00
kde-redhat-all            100% |=========================|  951 B    00:00
flash                     100% |=========================|  951 B    00:00
kde-redhat                100% |=========================|  951 B    00:00
dag                       100% |=========================| 1.1 kB    00:00
updates                   100% |=========================|  951 B    00:00
freshrpms                 100% |=========================|  951 B    00:00
jpackage-distspecific-fre 100% |=========================|  951 B    00:00
gstreamer                 100% |=========================|  951 B    00:00
jpackage-generic-devel    100% |=========================|  951 B    00:00
extras                    100% |=========================|  951 B    00:00
newrpms                   100% |=========================|  951 B    00:00
release                   100% |=========================|  951 B    00:00
Reading repository metadata in from local files

DCC.i386                                 1.3.21-13.rhfc4.at     atrpms
flash-plugin.i386                        7.0.61-1               flash
gpgme.i386                               1:1.1.0-16.rhfc4.at    atrpms
gstreamer.i386                           0.8.11-0.gst.1.4       gstreamer
gstreamer-plugins.i386                   0.8.11-0.gst.1.4       gstreamer
gstreamer-tools.i386                     0.9.6-0.gst.1.4        gstreamer
jpackage-utils.noarch                    1.6.6-1jpp             
jpackage-generic
libast.i386                              0.6.1-1.rhfc4.nr       newrpms
libtunepimp.i386                         0.4.0-2.fc4            extras
pine.i386                                4.64-0.lvn.2.4         livna
pinentry.i386                            0.7.1-9.rhfc4.at       atrpms
postgresql-jdbc.noarch                   8.0.309-1jpp           
jpackage-generic


However, I no longer see any attempt to download headers for new rpms.  
I understood that the check-update function was supposed to refresh the 
headers.

What am I missing.  How should I be getting new headers?

TIA

Fred