Getting Started
Microsoft SharePoint Portal Server 2003 and Microsoft Content Management Server (MCMS) 2002 are integrated into a common architecture in Microsoft Office SharePoint Server 2007. You can now access many tasks, such as customizing navigation, creating summary links, and scheduling deployments, through the user interface.
SharePoint Server 2007 is built upon Windows SharePoint Services 3.0, which is based upon Microsoft ASP.NET 2.0. As a result, you can also use functionality such as master pages, authentication providers, and navigation providers in SharePoint Server 2007.