Hi Kevin,
In such case, please open a support ticket and send me your project so I could check it. Thank you in advance for your cooperation.
As for your last question, yes, this is possible by using the client-side API - check the following help article for more details:
http://www.telerik.com/help/aspnet-ajax/window_programmingopeningfromwithin.html
Best wishes,
Georgi Tunev
the Telerik team