When setting up FotoWeb to use Internet Information Services (IIS), once the site is up and running you can access the site at e.g. http://fotoweb.yourcompany.com/fotoweb.
Simply going to the domain, omitting /fotoweb in the url will typically only display a generic IIS graphic to let users know that IIS is running on that server.
Microsoft has created a TechNet article that explains how you can configure a permanent redirect on your site.
This can be used to direct all requests to e.g. http://fotoweb.yourcompany.com/ to http://fotoweb.yourcompany.com/fotoweb to make it easier for users to access the site.
Learn how on Microsoft Technet (external link)