A path you could follow:
Renew your ubb license. This will get you member area access for $99. You do not to buy a new full license.
Upgrade to latest classic
If vbulletin can import that, you are set.
So that means that a version of Classic is still available ?
I need to get to 6.3 to do the import - I sent an email to sales@groupee.com as was suggested and that address is invalid - also sent email using the contact form - no replies