Unfortunately, the data is not portable between these versions. The only thing you could do to preserve your webdb is to dump it into a text file, and then inject into a 0.8 crawldb. As for the segments, you will have to refetch them.
Is it just that no migration utility has been written? Is there something about the structures in 0.8 that make migrating the data impossible, or extremely difficult?
Thanks, Howie
