Ok, I've tried to think of all the changes I've made. I've probably forgot some... Anyway, I've put the new/changed files into chroot-changes.tgz for you to download. This untars into a directory called "chroot" which should be then copied over to your mounted chroot with the "chroot" dir being the / (root dir) of your chroot.

You also need to apt-get install zenity and habak into your chroot.