just purchased the premium wpmudev and don't know what to do now

I just got this premium wpmudev.org and it starts off telling me to download the wpmu dev plugin for the dashboard. I downloaded it but then it says “install the plugin and login…” I don’t know how to install this plugin I don’t see the normal stuff you see when you are working on a website because I have never been here before.

So it just looks like a blank slate and I don’t know how to do anything when there isn’t a website there already.

If someone could help me, to set up this environment that would be wonderful! If there is a video or a tutorial that tells you how to set up this environment that would be great too.

Thanks very much,

my email is bdilucchio@cox.net since I don’t know how to see if anyone responds to this

Thanks again,

Barbara