Problem viewing commerce portal default page

AlexF

Hi, I am trying to install Commerce portal, it seams that all is working correct, but when i`m trying to view http://localhost/commerceportal/ following error appears …

The page cannot be found
The page you are looking for might have been removed, had its name changed, or is temporarily unavailable.
________________________________________
Please try the following:
• Make sure that the Web site address displayed in the address bar of your browser is spelled and formatted correctly.
• If you reached this page by clicking a link, contact the Web site administrator to alert them that the link is incorrectly formatted.
• Click the Back button to try another link.
HTTP Error 404 - File or directory not found.
Internet Information Services (IIS)
________________________________________
Technical Information (for support personnel)
• Go to Microsoft Product Support Services and perform a title search for the words HTTP and 404.
• Open IIS Help, which is accessible in IIS Manager (inetmgr), and search for topics titled Web Site Setup, Common Administrative Tasks, and About Custom Error Messages.

Any ideas how a can solve this problem, perhaps I missed some thing???
i`m running

Microsoft Internet Information Server (included with Windows 2003 Server)
•Microsoft SQL Server 2000, Service Pack 4 + Analysis Services, Service Pack 4
•Microsoft Internet Explorer 6.0, Service Pack 1
•MSXML 4.0, Service Pack 2
•Microsoft Commerce Server 2002, Service Pack 3
•Microsoft Business Solutions–Navision Database Server 3.70
•Microsoft Business Solutions– Navision Client 3.70
•Microsoft Business Solutions–Navision Application Server 3.70
•Commerce Portal Web Integration Components 3.70
:-k :-k

thanks