Adding another webpage or app to a Silverlight project

 I need to add another web page to the Silverlight project. I'm using the Telerik RadControls. But I'm not very familiar with Telerik and Silverlight. So I'm not exactly sure what to add.

Also I'm trying to put a picture inside a button. I tried some code today that i found on here using a StackPanel i think but it did not work.

I don't guess it really matters if the button is a RadButton or not.

Please help.

Thanks!