Installing SW License Manager 2012 SP0

I'm attempting an install of SolidNetWork License Manager (through the installation file I downloaded from the Solidworks website), and I'm getting stuck right away. When I get to the Summary of installation options, I'm unable to actually click "Download and Install", the button is greyed out.

Attached is a screenshot of what I get. What needs to be modified to go forward?

I'm sure this is a simple issue, but any help is greatly appreciated!

My operating system is Server 2003, and I've already got 2011 installed fine on the server.

SolidworksAdministration