diff -uNr anaconda-11.1.2.168__orig/installclasses/rhel.py anaconda-11.1.2.168/installclasses/rhel.py
--- anaconda-11.1.2.168__orig/installclasses/rhel.py	2009-03-05 10:02:20.000000000 +0000
+++ anaconda-11.1.2.168/installclasses/rhel.py	2009-03-05 10:06:02.000000000 +0000
@@ -13,6 +13,7 @@
 
 import logging
 log = logging.getLogger("anaconda")
+import rpmUtils.arch
 
 # custom installs are easy :-)
 class InstallClass(BaseInstallClass):
@@ -46,6 +47,9 @@
                      "See http://www.redhat.com/InstNum/ for more information.")
     skipkeytext = N_("If you cannot locate the Installation Number, consult "
                      "http://www.redhat.com/InstNum/")
+    repos = { 
+             "Packages from CentOS Extras": (None, "http://mirrorlist.centos.org/?release=5&arch=%s&repo=extras" %(rpmUtils.arch.getBaseArch() )) }
+
 
     def setInstallData(self, anaconda):
 	BaseInstallClass.setInstallData(self, anaconda)