You just need to set CurrentDate property of the RadScheduleView:
DateTime(2011, 9, 1, 0, 0, 0);
As to the other question - you can use VisibleRangeChanged
event and set the CurrentDate in its handler when the user switches to dates outside the needed range.
The other option is to set read-only slots as explained here
Hope this helps.
the Telerik team
Explore the entire Telerik portfolio by downloading the Ultimate Collection trial package. Get it now >>