Personally, I would start a new UBB and use your current forum as an archive/read only forum and put a link to your new UBB in the header of each page. You currently have 46 registered members and 78 topics so you're in a good position to ask your existing members to re-register on the new UBB and then start building your community on there.
Originally Posted by Gizmo
As for your current data, I'd love to see if you're running the only supporter forum we allow imports from (phpbb)
It is phpbb but as it's hosted can it be imported?