The code is not meant to clone db-structures, or install packages, it only deals with data. Currently the code does not deal with the CR but i have started to create instance-data handlers for the page and lars-blogger package, that allow to export package-instance data as well.
The export process creates several xml-files for users,groups etc. (downloadable via a zip file). It also creates individual xml-files for different package-instances. The CR should not be exported in one file, but as part of a package-instance.
For example, if the news package (that uses CR) is mounted under /news and /news2 the export should create different xml-files for those. And of course the info could be split over several xml-files per package-instance (eg. one for every 1000 items).
btw, i have successfully transfered 7000 users, groups and relationships between two server that way a few hours ago :)