Well, I've put out another maintenence release, fixing a few crash bugs and one playback bug, as well as adding a DSO executable format! It is very similar to a plugin but runs standalone instead of attached to a specific set of extensions. Check it out here and download the newest beta! Don't forget to grab the newest wonderswan plugin as the update has added new features to the plugin framework and thus will not work with older plugins!
Head to the newly opened Addons Page to grab stuff designed for DSOrganize. If you want to see your creation on this page and I haven't found it while trolling the forums yet, email me at firstname.lastname@example.org and I'll slap it up there for you.
Also, please read my post on the GBADev forums about DSOrganize file formats.
PS. There is a new libFB out as well, with some bugfixes, optimizations to the text rendering engine, and and overall code cleanup. BONUS: Documentation!