Flash Player is installed to /Library/Internet Plug-ins. It can't be used by itself outside of a browser. What do you mean by can't use Flash Player? Please describe the problem in detail.
Thanks, Maria. I came in today, tried Spotify again (which is why I wanted Player in the first place), and it worked. I don't know what I was doing incorrectly because yesterday when I tried to use Spotify, it kept asking me to download Flash Player.