Kickstart and RHEL 5

[Paul Whitney]

I am trying to create a custom ISO using RHEL 5. 

In RHEL 4 it was possible to mount the cdrom in the kickstart file after
install (%post --nochroot) and copy over files to the root homedir.

Apparently that feature is no longer available according to the RHEL 5
Installation Guide. Are there any suggestions on how to get a tar file,
background images and a script loaded onto a system using either ks.cfg
or some other means automatically? (i.e. no user interaction)

Thanks,

Paul W.