Maybe what little_joe is having trouble with is... the fact that UBBDev is so big. It really is big and it is also full of a ton of information. All this spanning sevral UBB versions. Maybe what is needed is a site map? Something that breaks down the different features and lists them according to UBB version or notes them multi-version compatable. This could go for the main forums, all the features and articles and the beloved Database.
Just my thoughts...
