Well, yes this is not a RadMap, its created using mapdotnet
this is the code used to implement it in the page:
<asp:Silverlight runat="server" ID="silverLightMap" Visible="true" Source="path/SilverLight.xap"
and it sits on top of everything. A button can be pressed on the left side of the page, which opens a radwindow, but it goes behind the silverlight object. Is there a way to make it go in front?