MTU.Community - Need help with reloading Hoster

I own two copies of Hoster. I have the first copy I bought loaded on my home computer and my laptop which if use for shows. I ordered the second copy so I could have a backup show machine. When I got the second copy, I loaded it on an older gateway laptop, however the video card for that machine was wrong and made it difficult to run a show. My primary show laptop went bad today and needs repairs. I bought a new laptop this evening, loaded hoster on it, only to learn that the video card on that machine was pretty much the same as the gateway card. I returned the HP laptop and got a different HP. This one has the correct video card. I removed hoster from both my older laptops, and I would like to install it on my new laptop. I have shows tomorrow night, Friday and Sat. nights.

Please tell me what I need to do. I want to remove the second copy from the old machines and install on the new one