Installation of SharePoint Services 3.0 is a straight foward process. It must be installed on Windows Server 2003 or higher, either 32 or 64 bits. Make sure that the Application Server role has been applied, which installs IIS, and make sure ASP.Net is enabled. On a Windows 2003 Server, go to "Manage Your Server" under the "Administrative Tools" menu to apply or remove roles. After applying the application role, download and install the latest .NET framework version, which includes the latest version of ASP.NET as well.
Now download and install SharePoint Services 3.0. When you begin the installation you will be presented with two options, basic or advanced. Choose basic if all the components of SharePoint will reside on one server. Choose advanced if the various components of SharePoint will be deployed on seperate servers. For example, the database may be installed on a seperate server, this would require you to choose advanced.
After SharePoint is installed you must run the "SharePoint Products and Technologies Configuration Wizard".A number of steps will be performed by the wizard to finish the installation on the server.
Click Next to begin the configuration wizard.
If the wizard is sucessful, a default site collection and team site will have been created.
Your new SharePoint site.