How do I get reward for running a node?
It goes to your masternode address as a default OR if forwarded as a donation goes to the address you point.
Hey, I watched your link... can't understand what exactly is.
And... where do I find the software to set up a node?
If you have 1,000 Dash, the easiest way to setup a node is through Node40.
https://node40.comAfter logging in select Masternodes => Setup Wizard. There are a few videos on the site that will show you how it works. And if you have any questions, there are real people behind Node40 who can help you out.