Thunderbolt iMac Build 10J4026

Trying to build an image while waiting for the unified thunderbolt 10.6.8. We received 30 new iMacs today, I used the model of the Thunderbolt MBP and tried the following catalog: Installer Disc Builds: 10J4026 Output Volume Name: Macintosh HD Output File Name: 10.6.7 MPS iMac Thunderbolt.hfs.dmg # # Sections # OS Updates: MacOSXUpd10.6.7foriMacEarly2011 http://support.apple.com/downloads/DL1383/en_US/MacOSXUpd10.6.7foriMacEarly2011.dmg sha1:6373eeed57cbac72372a8e8bf3f6453122e2f25d SnowLeopardFontUpdate http://support.apple.com/downloads/DL1377/en_US/SnowLeopardFontUpdate.dmg sha1:7d62a0936f9b572476ebc832db8604ea0e4932b6 On running I get the following error: Finding the Installer disc for 10.6_imac_thunderbolt Traceback (most recent call last): File "./instaUp2Date.py", line 716, in main() File "./instaUp2Date.py", line 678, in main foundInstallerDiscs = findInstallerDisc.findInstallerDisc(allowedBuilds=thisController.installerDiscBuilds) File "/Volumes/Data HD/instadmg/AddOns/InstaUp2Date/Resources/findInstallerDisc.py", line 201, in findInstallerDisc Resources.commonExceptions.FileNotFoundException: Unable to find OS Installer disc in any provided folder: ['/instadmg/InstallerFiles/InstallerDiscs', '/instadmg/InstallerFiles/BaseOS'] (['.svn', 'MacOS X Client 10.6.3 10D575.dmg', 'MacOS X Client 10.6.6 10J4026.dmg'], ['.DS_Store', '.svn']) I assumed that the Installer Disc Builds would find the correct image to build on as it is located in the instadmg > InstallerFiles > InstallerDiscs folder. Any help would be appreciated.