[Centos] anacron missing from 3.1

hi,
there is a few packages which are missingfrom 3.1 like anacron, mc etc. 
these are not used anymore ore replaced or ? I saw that these packages 
missing from redhat's ftp site to although rhel 3's admin guide has a 
reference to it.
thanks in advace.

-- 
   Levente                               "Si vis pacem para bellum!"