InstaDMG 425/443 & Lion 10.7.3 make 563KB DMG

Hey Y'all, Been using InstaDMG for lots of good things for years now, never really had a problem as it always seemed to 'just work'. Kudos for that. But now I'm running into a problem I haven't seen posted here yet. I am trying to run either the direct ./instaDMG.bash or the standard instaUp2Date.py (-p ...) and I continually get a 563KB DMG file both ways. I have tried this on a freshly built MacBook 4,1 and an older MacPro 1,1. Both running 10.7.3. I have downloaded the latest versions of InstaDMG (SVN says I am at revision 443, but instadmg says I am running 425) I have re-downloaded the Lion installer and re-tested the extracted InstallESD.dmg to confirm it works (it does). I have put the InstallESD.dmg into the required folders and it appears to be running (as it does make the DMG), but I get a host of errors when is it under the ##Looking for a Cached Image##. There are lots of "domain/default pair of (/private/tmp/..../.../System/Library/CoreServices/SystemVersion, ...) does not exist" errors, including the ProductVersion (twice), ProductBuildVersion, and ProductName. Then I get an error... ./instadmg.bash: line 665: [: 7: unary operator expected Target OS: () Some benign warnings about 10.5 and the installer deamon-jailing. Instadmg continues on like normal, but way faster (say 2 minutes) and finishes. The DMG is so small it is crazy. The MacPro has been used for the past year to pump out the 10.6 instaDMG images with no issues. The MacBook was just imaged just to see if the issue with with the MacPro. Which it doesn't seem to be. If anybody can offer any assistance as to why InstaDMG is acting this way, I would be extremely grateful. Thanks in advance. -Chris