I'm planning on moving from vBulletin. I have two forums running both vBulletin 3.8.5 and 4.2.0. My 3.8.1 forum has a custom mod we'd like to migrate too. Basically it adds a separate movie collection lister database with which forum members can list their movie collections. It also adds a new home page. Both databases share the same login. My question therfore is how similar are XF and vB? Will our mod need to be re-written for XF? You can see an example of the mod in action by following the link in my sig.