This documentation refers to new TreeV3, not to stable Tree widget. Many classes have V3 on the end for TreeV3, but that suffix can be omitted, because it will be removed in dojo 0.5. Basic things are shown in tests (dojo/tests/widget/treeV3), so you might want to check them first and copy-paste exactly the things you need. The tutorial is meant to provide deeper understanding for those who want to extend/modify tree behavior. This is just a draft, quite incomplete, but I'd be grateful for your replies. The contacts are IRC: Freenode, #dojo by nick [algo] ICQ: 820317 Dojo mailing lists: "Ilia Kantor" ilia @ dojotoolkit.org