Why I don't see Sql Agent ?

Hi, I'm using sql 2005 express on windows 7 and I'm following the steps giving in MS site, http://msdn.microsoft.com/en-us/library/ms191454%28v=SQL.90%29.aspx.However from the attached screen capture you can see that there is no Sql Server Agent Service.  Where is it?  thanks.
   1.      On the Start menu, point to All Programs, point to Microsoft SQL Server 2005, point to Configuration Tools, and then click SQL Server Configuration Manager.
   2.      In SQL Server Configuration Manager, expand Services, and then click SQL Agent.
   3.      In the results pane, right-click any instance, and then click Start.
      A green arrow on the icon next to the SQL Server Agent and on the toolbar indicates that SQL Server Agent started successfully.
   4.      Click OK.

Here is my sql server information:
Microsoft SQL Server Management Studio                                    9.00.5000.00
Microsoft Analysis Services Client Tools                                    2005.090.5000.00
Microsoft Data Access Components (MDAC)                                    6.1.7600.16385 (win7_rtm.090713-1255)
Microsoft MSXML                                    3.0 5.0 6.0
Microsoft Internet Explorer                                    8.0.7600.16385
Microsoft .NET Framework                                    2.0.50727.4952
Operating System                                    6.1.7600
Agent.jpg