janhes, did you manage to suceccsfully convert/migrate your existing trees ans maps to 8.x? At first sight it looks easy to migrate your 6.7 trees (derived from DTD or XSD) into the new format. Unfortunately we had to modify the trees imported by 6.7 slightly so that the tree migration doesn't work automatically any more. And the map migration tool seems to be in an early stage, it crashed quite often and gives senseless error messages.
BTW, what's the difference between 8.0 and 8.0.1? Any significant improvements?