I know most of us here no longer use vBulletin, but if you were interested in migrating to vBulletin and are using phpBB, or Xenforo you can now migrate to vBulletin cloud. There's no stand alone conversion tools, so your migrated forum will be hosted on vBulletin cloud and it costs an additional $119 but it extends your license expiry by 6 months. I wonder why this was never an option from vBulletin to begin with. All the other paid forum scripts come with free conversion tools.
Welcome to Admin Junkies