Newbie Firstboot question

Hello All, My current issue is getting my Firstboot package to install. I built the package following the instructions on OSXDeployment, but I can't work out how to get it to install. My changes are fairly simple - time zone, Remote Management Settings. I have tried adding it to my Catalog files & putting the package in /InstaDMG/InstallerFiles/InstaUp2DatePackages/ My output suggests that it ran fine -- pastie.org/2874445 -- but none of the changes appear in the deployed image. Thanks,