Impex from 1.1.5 doesn't correctly pass passwords over

[PlymWS]

I have imported my users from my SMF forums to VB 3.7.2. After adding a random user all the imported users are shown correctly. However when they try and log in the password they used on SMF doesn't work and they can't log in.

Is there a way to correct this ? If not, is there a way I can force users to change their passwords on first login to VB ?

[PlymWS]

Found the info http://www.vbulletin.com/docs/html/impex_passwords