Looks promising! We would need another level of customization, namely the ability to specify different images for each node (e.g. Inbox, Trash, etc.).
What's the license for the scripts on that site?
phil wrote:
http://www.dhtmlgoodies.com/index.html?whichScript=drag-drop-folder-tree
Click on the 'demo' link on the right to check it out. Could be useful...
P
http://fak3r.com - you don't have to kick it