Call one of multiple silverlight pages from an ASPX page

Call one of multiple silverlight pages from an ASPX page

I am new to Silverlight and this seems to be an issue every time I try to
code with it. I am adding ESRI GIS mapping to my ASP.NET application. I am
using the Silverlight control for the maps. So, I have created my
Silverlight project. I want one XAML page to be a Map with certain
features and capabilities that I can dump into a User Web Control that I
can use in multiple places in my application. This isn't hard and I have
done this.
The problem is, I want to create a new XAML page in the same Silverlight
project that contains different features in regards to the Mapping
functionality. But, I can't seem to figure out how to add my silverlight
control to the page and not call the MainPage.xaml file but my new
MapPage.xaml.
Is there something I am missing. It seems like I should be able to do it
where I call the object on the ASPX page.