About the importer I will give a try to the SmalltalkImporter. Anyway my main concern is not to create the structure of the smalltalk application (since the app file is really linear you always have the parent of a node at hand), but the part where I have to campute method invocations and accesses. Is that second part somehow there already?
 
Let you know how it goes with the importer.
 
Thanks and cheers,
Fabrizio