Thank you for writing.
Our Timeline view in grouping mode looks like the control shown on the screenshot that you have sent.
You can find such an example in the Scheduler >> Timeline Grouping
section of the Examples application that is provided with our suite. In addition, you can apply a custom theme to the RadScheduler control and you can customize the appointments backgrounds like in the screen shot. If you have some specific questions, feel free to write back.
the Telerik team
Q3’10 SP1 of RadControls for WinForms is available for download
; also available is the Q1'11 Roadmap
for Telerik Windows Forms controls.