This thread died 13 years ago, the only active members from this original discussion still around is me...
Officially, UBB threads does not support third party modifications to the base code (the code wasn't written to be in the official codebase, therefore its not supported); however, the development community at UBBDev
has a huge listing of code modifications which has been around about as long as UBB.threads and UBB.Classic have been products.
Where you will see some of the same faces as UBBCentral, UBBDev (like my other project, UBBWiki
) is not owned by UBB Systems (who is the vendor of UBB.threads) and is instead owned by myself and help run by the current UBB development team (Isaac and myself).