Try this and see if this solves your problem.

<?xmlversion="1.0"encoding="utf-8" ?>
<siteMapxmlns="http://schemas.microsoft.com/AspNet/SiteMap-File-1.0" >
<siteMapNodeurl="~/Default.aspx"title="Home"description="Site Home Page">
<siteMapNodeurl="~/Products/productLists.aspx"title="Products"description="Show All Major Categories" />


<siteMapNoderoles=""url="~/Products/MusicalInstruments/musicalInstruments.aspx"title="Musical Instruments"description="Show 1st Product Category" />
<siteMapNodeurl="~/Products/MusicListing/musiclistings.aspx"title="Music Listing"description="Show 2nd Product Category" />
<siteMapNodeurl="~/Products/Books/books.aspx"title="Books"description="Show 3rd Product Category" />
<siteMapNodeurl="~/Products/History/history.aspx"title="History"description="Show 4th Product Category" />
<siteMapNodeurl="~/Products/Videos/videos.aspx"title="Videos"description="Show 5th Product Category" />

<siteMapNodeurl="~/Services/serviceLists.aspx"title="Services"description="" />
<siteMapNodeurl="~/Serivces/BestSellers/bestsellers.aspx"title="Best Sellers"description="Show 6th Product Category"/>
<siteMapNodeurl="~/Services/Events/events.aspx"title="Events"description="Show 7th Product Category" />
<siteMapNodeurl="~/Servicecs/Specials/specials.aspx"title="Specials"description="Show 8th Product Category" />
<siteMapNodeurl="~/Services/StoreHours/storeHours.aspx"title="Store Hours"description="Show 9th Product Category" />



<siteMapNodeurl="~/ShoppingCart/shoppingCart.aspx"title="Shopping Cart"description="Show 10th Product Category" >
</siteMapNode>
</siteMapNode>


</siteMap>