We gave up trying to use oData - the endpoints were returning JSon and not XML, and couldn't bind but mainly because we needed the OnappointmentCreated event on the server and oData seemed to be only on the client.
I too hadn't used oData before, so had to go back to what I know as we were running out of time.
I have found it easier to search using google, rather than the Telerik search above, so give that a try.
Other wise there are some samples in the Telerik help or search the forums.
Sorry I cant be any help