Ben,
I believe this was one of the errors I was getting when I tried working with an Acrobat-only installer built with the CCP (but not sure, that afternoon has become something of a blur). This is the Adobe helpx article on the error: http://helpx.adobe.com/creative-suite/kb/error-1603-install-cs3-cs4.html (which you may have already found). There's also some good troubleshooting tips here: http://www.itninja.com/question/error-1603-deploying-adobe-packages
The second link goes to a forum for our deployment tool (KACE/KBOX), but you can often find some good tips for deploy scripting and troubleshooting.
Hope this helps,
Ric
