I'm not sure about that plugin. With most of them, though, make sure the name matches the folder in your /plugins directory, including the correct case. Then, make sure you've read the README file, so you know what other settings you may need to put into the config.php file.
Comments
Most plugins do not show up in the admin panel.
Is it possible?
You might need to code yourself an addition to the admin-panel. But I have no idea how you could do that.