Joomla to vBulletin suite?
 

I am converting a Joomla 1.5 board to vBulletin 4.0.6.

Problem i am having is that i only have 4 modules to run:

001: check and update database 'which works'
002: Associate users
003: Import User 'which works'
004: Import article

How do i also import the forums/threads/posts??