how to re-create kick start bootable ISO

Hi All,

I want to create kick start bootable ISO file. I have Centos 5.4 ISO and customized ks.cfg file. Now I need to recreate ISO with ks.cfg and content of existing ISO.
During installation, it automatically should pick the kick start file and need to proceed with the installation.

Please provide me some solution or suggestion to me.

Thanks,
Kalai