Hello David Park,
Make sure that you have mapped the template correctly with its host type hostType="Telerik.Events.WebControls.EventsScheduleView"
. The LayoutTemplatePath specify the template to the EventsScheduleView tempalte where you have RadScheduler declaration. Onece you have mapped the tempate you need to restart your application. Thus the changes will take effect. The RadScheduler uses the embedded skins that you can change from its declaration.
Let us know if there is anything else that we can do for you.
the Telerik team