Fewtile is not a jenkins plugin - it runs from the 'userContent' folder of your jenkins install. The simplest way to install is just to clone fewtile from git to that folder.
- SSH to your jenkins server.
- cd to [jenkins root]/userContent - e.g. /var/lib/jenkins/userContent
- git clone git://github.com/techtangents/fewtile.git
Fewtile is now available via a web browser at [server url]/userContent/fewtile
I'd suggest editing the description at the top of your jenkins home page, adding: fewtile scoreboard
Fewtile is officially supported only on Google Chrome. It might also work on Safari or Firefox.