Web site Map

Dear Friend;
I am a c#.net and asp.net beginner. When I am developing a small web project, I coudn't Add another new main menu like Find. I already added menu control under navigation pannel. I wrote following code to web.sitemap page. Please tell me how to add New menu like find menu.

<siteMapNode url="" title="Find"  description="">
    
    <siteMapNode title="Computers">
      <siteMapNode url="" title ="Barnd new" />
      <siteMapNode url="" title ="Used" />
    </siteMapNode>

    <siteMapNode title ="Home Applince">
      <siteMapNode url ="" title ="Brandnew" />
      <siteMapNode url ="" title ="Used" />
    </siteMapNode>
 
  </siteMapNode>

Thanks
Kelum kanchana