Question : I am trying to install ADFS on Windows server 2003 R2 - I can get the ADFS web components installed but...

I am trying to install ADFS (Active Directory Federation Services)  on a Windows Server 2003 R2 .  
I can get the ADFS web components installed but only the ADFS web component works (Step 1).

However, when I try step 2 below there is no option for Federation Services (Step 2 - part 5).
ANy ideas?

(Step 1)
To install the ADFS Web Agents
1.      Click Start, point to Control Panel, and then click Add or Remove Programs.
2.      In Add or Remove Programs, click Add/Remove Windows Components.
3.      In the Windows Components Wizard, click Active Directory Services, and then click Details.
4.      In the Active Directory Services dialog box, click Active Directory Federation Services (ADFS), and then click Details.
5.      In the Active Directory Federation Services (ADFS) dialog box, click ADFS Web Agents, and then click Details.
6.      In the ADFS Web Agents dialog box, select both the Claims-aware applications check box and the Windows NT tokenbased applications check box, and then click OK.
7.      In the Active Directory Federation Services (ADFS) dialog box, click OK.
8.      In the Active Directory Services dialog box, click OK.
9.      In the Windows Components Wizard, click Next.
10.      If you are prompted for the location of installation files, navigate to R2 installation files\cmpnents\r2, and then click OK.
11.      On the Completing the Windows Components Wizard page, click Finish.

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(Step 2)
Install the Federation Service
Use the following procedure to install the Federation Service component of ADFS on the adfsaccount computer and the adfsresource computer. After the Federation Service is installed on a computer, that computer becomes a federation server.
 To install the Federation Service
1.      Click Start, point to Control Panel, and then click Add or Remove Programs.
2.      In Add or Remove Programs, click Add/Remove Windows Components.
3.      In the Windows Components Wizard, click Active Directory Services, and then click Details.
4.      In the Active Directory Services dialog box, click Active Directory Federation Services (ADFS), and then click Details.
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5.      In the Active Directory Federation Services (ADFS) dialog box, select the Federation Service check box, and then click OK. If Microsoft ASP.NET 2.0 was not previously enabled, click Yes to enable it, and then click OK.
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6.      In the Active Directory Services dialog box, click OK.
7.      In the Windows Components Wizard, click Next.
8.      On the Federation Service page, click Create a self-signed token signing certificate.
9.      Under Trust policy, click Create a new trust policy, and then click Next.
10.      If you are prompted for the location of the installation files, navigate to R2 Installation Folder\cmpnents\r2, and then click OK.
11.      On the Completing the Windows Components Wizard page, click Finish.

Answer : I am trying to install ADFS on Windows server 2003 R2 - I can get the ADFS web components installed but...

needs to be R2 Enterprise edition - Standard addition does not provide Federation Service Component