System Center Essentials 2007 on Server 2008 R2 installation error.

I've got a Dell R200 server running Windows Server 2008 R2 Standard.
I've also installed the System Center Virtual Machine Manager and its running fine.

I'm attempting to install the System Center Essentials 2007 SP1 Evaluation to no avail
I select "full setup" from the autorun.
Message comes up right after the welcome screen:
Program Compatibility Assistant.  This Program is blocked due to compatibility issues.

Check online to see if solutions are available from the Microsoft Website.  If solutions are found, Windows will automatically display a website that lists steps you can take.

Program: Windows Server Update Services
Publisher: Microsoft
Location: D:\Temp\EvalCDImage\AMD64\WSUSSetup.exe

I'm running a Dell R200.  Not AMD...

The noted folder doesn't appear in the EvalCDImage directory either...

Checking for solutions online from the install yields "No solutions found."

Hope there is one here...?

Tips welcome!