Thank you for your feedback.
The 2007 Q2 release is planned for mid September. You can find more details on the release here: http://www.telerik.com/products/winforms/roadmap.aspx
. One of our priorities for Q2 is better documentation which will help you work better with our controls.
Let us know if there is anything else you would like to see in RadTreeView - we will be happy to help you out.
the Telerik team