Need to copy Some Folder during the installation with YAst

hi team ,
I am creating a customized image for testing , and i have added some additional folder with post scripts in the image .I want to copy the post script Folder to the server during the installation.
Am assuming cd / dvd will be mounted on /mnt/var/tmp/AP* so i tried to copy using post-partition scripts , chroot scripts but none worked.
Can anyone give some inputs