Questions about the chroot Jail

I organize my CustomPKGs into subfolders (01, 02, etc) and in the past this worked great. I just tried building with 1.5rc1 and none of my custom packages installed. Here is an excerpt from the onscreen information: Working on folder 03 (11:02:25) Copying folder ./InstallerFiles/CustomPKG/03 into the target at /private/tmp/package.pzECIL Installing ATI9600VideoDrivers.pkg from ./InstallerFiles/CustomPKG/03 (03) inside a chroot jail Installing CharacterPalette.pkg from ./InstallerFiles/CustomPKG/03 (03) inside a chroot jail Installing Custom Remote Desktop Installer.mpkg from ./InstallerFiles/CustomPKG/03 (03) inside a chroot jail Installing DeleteAdobeCaches.pkg from ./InstallerFiles/CustomPKG/03 (03) inside a chroot jail Installing FieryCupsFilter.pkg from ./InstallerFiles/CustomPKG/03 (03) inside a chroot jail You can see that it copied the folder over, but the individual packages were still running from their original locations - and apparently didn't install at all. Is there any information available on how the chroot is working and why it requires the copying of the files? Or should I just not keep my Custom Installers in subfolders? Thanks for any information.