thanks for this - alas for me it still gives me the same issue during the kix namely 'no network cards available for kickstart' or words to that effect.
it seems crazy to me that HP have shipped kit that RedHat appears to not see out of the box.
OK looking into this more i have made it work - My kix used to contain the acpi=off kernel parameter and it seems this wwas throwing off the installer. Removing this and everything is fine.
thanks