I may not be successful but I will at least try my best, and I have moved a forum nearly as large over 4 systems to get from A to B with a rotten database
Be careful what you ask for, Osgeld... 
Based on the blog posting (and I may be completely wrong about this), there seemed to be the implication that this current forum -isn't- using a DB back-end under Perl (flat text files, anyone?)...
If true, such a system could be a real nightmare to migrate without some serious script-fu to stuff the data from those files into a DB properly. It wouldn't be impossible, but it wouldn't be quick nor easy, either.
Good luck if you manage to pull the task!
