[Yum] question: RH9 to fedora upgrade

[John Uhlig]

I probably missed this on the list but can someone point me to 
instructions on how to use yum upgrade to upgrade an existing
RH9 system to fedora? I could not find anything at the yum
web site and the info I have found via web searches has not
worked. Any pointer to a quick FAQ would be appreciated.

I have also heard that the yum rpm from:

http://linux.duke.edu/projects/yum/download/2.0/yum-2.0.4-1.noarch.rpm

...does not work or is broken in some way. Does anyone know if
this is true.

thanks,
John U.