I have version 1.9.3RC4PRO installed; it's been running trouble free for quite a long time (since March 2003 I think) and we've never had the pressing need to upgrade. Unfortunately, now I have to upgrade...we're moving into a PostNuke/Invision board integration. What, if any, upgrade path do I have (primarily concerned with the 1.9.3RC4PRO DB upgrading)? I also use the Invision plugin from the 2003 era, do I need to purchase a new version of that? On top of it all, I may be adding in the PostNuke plugin.