Richard,
The Commander pack and all the modules have no applications. They are just data. You must install the CO2 Core engine first and then install the modules. I suspect that you may not have the latest CO2 Core engine. It's a bit hard for me to see what is already installed on your machine at the moment. Can you please provide me with a screen dump of what the interface looks like for you using the Commander Pack.
To make a screen dump, hit the Print Screen button on your keyboard. This copies the screen to the clipboard. Open a paint program (MS Paint will do.) Paste the clipboard into it. Save as jpg file. Upload here.