Someone with an account on the new forum can post this there.

http://bbpress.org/forums/topic/successfully-convert-smf-1111-to-bbpress-102
http://www.phpbb.com/community/viewtopic.php?p=3258238#p3258238

Slitaz created a new forum without old posts when it started vanilla and it created a great deal of unnecessary work in re-answering questions answered elsewhere.  At least this forum is still accessible (unlike the old forum) but people will have to (or be told to) search both forums in addition to multiple manuals.