Yes, I am trying a fresh install. Ideally I would like to just install the 4.x fresh using the legacy database as otherwise I will need to install an old version of IP boards and then upgrade that way, which seems laborious as I think it would mean reverting to an older version of PHP as the original forum is now offline.
It seems that the 4.x installer is aware of the IP Boards 3.x database so I thought the conversion would work. Is it more nuanced than that? The installation itself goes through fine.
I have looked at a few of the tables and much as most of the content is the same, I can see some have been renamed, would it be possible to just remap the existing ones?