Impex not importing all data

Trying to do an import from a Yabb 2.1. Using latest vBulletin software and latest import/export 1.82 just downloaded. Getting this...

Import / Export :: yabb2
Module Action Successful Failed Time taken
001 Check and update database 1 0 1 sec(s)
002 Import user 63 0 1 sec(s)
003 Import forum 20 24 2 sec(s)
004 Import thread 34 0 32 sec(s)
005 Import post 399 86 8 sec(s)
006 Import Private messages 1 68 1 sec(s)