it doesn't seem to work with XF's new CL-importer. Import option is not avalible when CLI is used.
edit:
eventlistener.php
seems to fix it
edit:
eventlistener.php
PHP:
if (in_array($class, array('XenForo_Importer_vBulletin', 'XFCliImporter_Importer_vBulletinCli', 'XenForo_Importer_vBulletin4')))