THE OFFICIAL BLOG OF THE SBS "DIVA"

Windows Small Business Server and Essential Business Server Documentation : Great way to automatically back up your SBS client computers:
http://blogs.msdn.com/sbsdocsteam/archive/2009/08/14/great-way-to-automatically-back-up-your-sbs-client-computers.aspx

Using Windows Home Server to Back Up Windows Small Business Client Computers

Published: August 12, 2009

Applies To: Windows SBS 2008

The Windows® Home Server server software can automatically back up as 
many as 10 client computers on a Windows Small Business Server 2008 
(Windows SBS 2008) network, so that you can easily restore entire 
computers or selected files or folders.

This article shows you how to set up Windows Home Server in your Windows 
SBS 2008 network.

    * Why use Windows Home Server?
      <http://technet.microsoft.com/en-us/library/ee378522%28WS.10%29.aspx>

    * Before you begin
      <http://technet.microsoft.com/en-us/library/ee378517%28WS.10%29.aspx>

    * Setting up Windows Home Server to back up client computers
      <http://technet.microsoft.com/en-us/library/ee378523%28WS.10%29.aspx>

    * Choosing which hard drives and folders to back up
      <http://technet.microsoft.com/en-us/library/ee378519%28WS.10%29.aspx>

    * Manually backing up a client computer
      <http://technet.microsoft.com/en-us/library/ee378515%28WS.10%29.aspx>

    * Viewing and managing backups
      <http://technet.microsoft.com/en-us/library/ee378520%28WS.10%29.aspx>

    * Restoring a client computer
      <http://technet.microsoft.com/en-us/library/ee378516%28WS.10%29.aspx>

    * Copying drivers from a backup to a USB flash drive
      <http://technet.microsoft.com/en-us/library/ee378521%28WS.10%29.aspx>

    * Restoring individual files and folders
      <http://technet.microsoft.com/en-us/library/ee378514%28WS.10%29.aspx>

    * Remotely managing your backups
      <http://technet.microsoft.com/en-us/library/ee378512%28WS.10%29.aspx>

To answer Sahalu on that page... why do you want this?  This isn't backing up the server, this is backing up those 
key critical workstations (like the boss that pays your salary/bill) so that you can easily restore them.