The plug-in seemingly isn't aware of using the settings folder as it keeps complaining about not being able to save out a hitlist or playlist file. It also uses the same filename as WACUP's lyrics plug-in causing that to be incorrectly replaced which may also be causing problems. As for its preference child dialogs not showing up, I won't know if it's something that I will be able to fix until I can get around to looking into it.
[edit]
The issue is the dialog creation was being forced to unicode but the plug-in was coded to only expect non-unicode treeview messages which prevents clicking on anything in the treeview control to then trigger the expected action of creating the pages.
