SharePoint学习困惑

最近公司想做一个文档库产品，了解到Microsoft的SharePoint可以胜任这方面的工作，所以昨天和今天都在这方面的事情，看了一些文档，还是有些模糊，装了 SharePoint Service 2003,安装过程中出现了
Windows SharePoint Services 2.0 does not support in-place upgrading from SharePoint Team Services 1.0 or FrontPage Server Extensions. 的错误
查找STSRead.htm文档，有如下的解决方法

If the default Web site is provisioned with FrontPage Server Extensions, unprovision the virtual server before installing Windows SharePoint Services

Before setting up Windows SharePoint Services, make sure that the default virtual server on port 80 is not already provisioned with FrontPage Server Extensions 2002. To unprovision FPSE2002 from your default virtual server:

1. Click Start, click Administrative Tools, and then click Microsoft SharePoint Administration.
2. On the Server Administration page, next to the virtual server you want to uninstall FrontPage Server Extensions 2002 from, click Administration.
3. Click Uninstall FrontPage Server Extensions 2002.
4. On the Uninstall FrontPage 2002 Server Extensions page, next to Full Uninstall, select Yes.
5. Click Uninstall.

但是，我在找不到Server Administration ，是不是我还要装SharePoint Server? SharePoint Server和SharePointService关系是怎样的，困惑中。