1.A default setup program automatically installs SQL Server 2005 express edition. You will need to create configuration database for your SharePoint sites, extend an application pool and create your first site.
2.A default setup program automatically installs WMSDE. You will need to create configuration database and content database for your SharePoint sites, extend an application pool and create your first si
3.A default setup program automatically installs SQL Server 2005 express edition and uses it to create the configuration database for your SharePoint sites. You have to create your first web application
4.A default setup program automatically installs SQL Server 2005 and uses it to create the configuration database for your SharePoint sites, installs SharePoint's Central Administration web-site an