Upgrading with autoinstaller

[mysticav]

I'm using auto installer 8.6 for fedora 6

The problem is that I get this error:

Downloading the file repodata/repomd.xml: ERROR: Failed to download the package http://download.fedora.redhat.com/pub/fedora/linux/core/6/i386/os/repodata/repomd.xml:
The requested URL returned error: 404

If you go to:
http://download.fedora.redhat.com/pub/fedora/linux/core/6/

You will find nothing there !

Any Idea ?