Check out the article entitled, “Why Learn WordPress.”
Installing WordPress means that it will be used to build and manage your Internet Radio Website.
I highly recommend taking a structured online course in WordPress. It is not difficult to learn and you will be good to go in a week or two. You will learn the right way. No hacking or fumbling around trying to figure WordPress out by yourself.
I recommend WP101.
Here is a link that discusses in detail the exact steps to Install WordPress. There is a video, too. Go here.