Just wondering how this new bit works and what it does? Since the old site had a fanfic and fanart area in addition to the forums, will the stuff from there be migrated to here? Also, do items submitted into the file manager get uploaded onto the site or are they maintained at the original URL entered?

There are plans to move the other stuff including the kit katse club to this site yes. The filemanager will not upload anything directly to the site server so files are maintained at their original url. Think of it as a kind of C-NET like site where the files are downloaded from other places.