control is a source to the site map data that is stored by the site map providers that are configured for your site. There is a default SiteMap provider defined in the web.config
|<add name="CmsSiteMapProvider" description="Displays Cms Pages" type="Telerik.Cms.Web.CmsSiteMapProvider" />
However, the best way that I could come is to export the SiteMap as WebServices and call it in your e-commerce website( binding it to your navigation controls)
The best way is to have all in one place - not as separate application. Thus you will avoid such references.
I hope that this helps.
the Telerik team
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