Building 10.6.8 Server image

I am trying to build 10.6.8 Server, just a vanilla install. My base media is the Apple provided 10.6.1 Server media from our Software Maintenance agreement with Apple. I am building it to provide a streamlined way to install 10.7 Server from external Media without installing 10.7 Client first. I imported the disc using importDisc.py as I have always done and am rewarded with “MacOS X Server 10.6.1 10A2054.dmg” I am only applying the 10.6.8 Server Combo Update since this is just an installer platform for server so My catalog is as follows:

Installer Disc Builds:	10A2054

Output Volume Name:		Macintosh HD
Output File Name:		10.6.8 Server Vanilla

OS Updates:
	MacOSXServerUpdCombo10.6.8	/instadmg/InstallerFiles/BaseUpdates/MacOSXServerUpdCombo10.6.8.dmg	sha1:2c3f2bb57d675d9383ebdf061679f87e9c7ba7cc

I invoke instaUpToDate:

sudo ./instaUp2Date.py --instadmg-scratch-folder=/Volumes/Video/ --process 10.6_server_vanilla

I get back the following error:

Parsing the catalog files for 10.6_server_vanilla
	MacOSXServerUpdCombo10.6.8

Finding and validating the sources for 10.6_server_vanilla
	MacOSXServerUpdCombo10.6.8 - found at a relative location and verified in 20 secondses/sec)

Finding the Installer disc for 10.6_server_vanilla
Traceback (most recent call last):
  File "./instaUp2Date.py", line 716, in <module>
    main()
  File "./instaUp2Date.py", line 678, in main
    foundInstallerDiscs = findInstallerDisc.findInstallerDisc(allowedBuilds=thisController.installerDiscBuilds)
  File "/instadmg/AddOns/InstaUp2Date/Resources/findInstallerDisc.py", line 201, in findInstallerDisc
    raise commonExceptions.FileNotFoundException('Unable to find OS Installer disc in any provided folder: %s%s' % (str(searchItems), folderString))
Resources.commonExceptions.FileNotFoundException: Unable to find OS Installer disc in any provided folder: ['/instadmg/InstallerFiles/InstallerDiscs', '/instadmg/InstallerFiles/BaseOS'] (['.svn', 'MacOS X Server 10.6.1 10A2054.dmg'], ['.svn'])

I have rebooted to make sure its not an unclean unmount but the error keeps occurring.

Any thoughts?