The instructions for installing revolution slider should show up on the top of the screen in the admin dashboard and you will have to just follow steps recommended there as seen below –
https://docs.google.com/file/d/0B9j6FQo4cSQFZmJPVzludGpZdW8/edit?usp=drivesdk
If for some reason, you have trouble with following the onscreen instructions, you can manually install the revolution slider plugin from the location mentioned by Frank above (i.e.,