[Sussex] Fedora 9 repository problem

[Brendan BT Account]

I downloaded Fedora 9 (direct from Fedora), burnt a DVD and started the 
installation. Unfortunatelly, I got a "Unable to read package metadata 
from repository" error when I tried to configure/select what I want to 
install. I looked on-line and found a suggestion that I could have a bad 
ISO image so I downloaded from a mirror and tried again but still get 
the same problem. Other suggestion are to "yum clean all" but obviously 
I can't do that until I have an installed operating system. Would it be 
best to install and then configure the system? Any other suggestions?

Thanks, Brendan