Davros, I don't mind what you are doing here, but at least give me credit if you are going to be taking my hosts file, build.prop, Sound Recorder, parts of my updater script, etc. I did not get these from somewhere else... I created these myself.
BTW, your script deletes users' audio folder, but does not replace it with anything, so they are now without ringtones and UI sounds.
The current method you have would work if you take out the line "delete_recursive ("/system/media/audio");" and remove the system/media/audio/notifications folder from your ZIP.
Also, there is no need for the line "set_perm (0, 0, 0755, "/system/xbin/search");" because that is specific to my mod only -- unless of course you intend to include the search script in future builds of your theme.
Keep up the good work. I think your theme is coming along nicely!