The current code and suboptimal and does not carry enough of the data forward such as deleted information, or even the threading info (after import, all the messages are in individual threads instead of being in the right thread...).
All that data is in the phpbb3 tables, so this just needs to be done in a more intelligent way.
Comments
Comment #1
naheemsays commentedJust committed this: http://drupal.org/cvs?commit=212660, but is untested. If anyone has tested the new import code, please comment to confirm.
Comment #2
naheemsays commented