Hi. I've been reading all about your code and work on this over the last couple years ... very impressive ;-) I'm looking for something that I can use for a site that I'm developing, but, it needs to be applied to custom taxonomies registered to custom post types, and I need to be able to implement it on the front end as well as the post editor in admin. Your code is the closest I've seen for a jumping off point for this. I have a site in development right now that is running on 3.0, and already has everything set up for a very thorough debugging landscape, custom post types registered, custom taxonomies assigned, data entered, taxonomies with sub sub sub sub terms, etc.. If you would be interested in taking a look to see if it's doable, or what it would take to migrate this to apply to custom taxonomies and posts for the 3.0 release, please feel free to shoot me an email.