Strange Rev 200 InstaDMG issue

I tried to use Rev 200 of InstaDMG (I read it was a candidate for release 1.5..I also tried the latest version and got the same exact issue) and I can't even build a regular non-updated image with it. I am using InstaUp2Date and I get the following error: [code]12:46:19 ###### Looking for a Cached Image ###### ###### Unable to get checksum for image: ./InstallerFiles/BaseOS/Mac OS X Install DVD.dmg ###### 12:46:19 ###### Beginning Update Installs from ./InstallerFiles/BaseUpdates ###### 12:46:19 ###### Beginning Update Installs from ./InstallerFiles/CustomPKG ###### 12:46:19 ###### Correcting some generic installer errors ###### Correcting symlinks that point off the disk Closing programs that have opened files on the disk Deleting Extensions.mkext cache file Deleting cache files created during installations 12:46:20 ###### Creating the deployment DMG and scanning for ASR ###### Rename the deployment volume: Macintosh HD Create a read-only image cp: /private/tmp/mount_folder.LQEi5f/mount_point.znDuZh/private/var/log/InstaDMG_package.log: No such file or directory The image did not eject cleanly, so I will force it ###### Failed to unmount the Target image image from /private/tmp/mount_folder.LQEi5f/mount_point.znDuZh, unable to continue ###### 12:46:21 ###### Cleaning up ###### Ejecting images The image did not eject cleanly, so I will force it ###### Failed to unmount the Target Disk image from /private/tmp/mount_folder.LQEi5f/mount_point.znDuZh, unable to continue ###### [/code] Any help would be greatly appreciated.