To Install this Plugin just follow the files as you see them and place them in the same spot for the server.
After you are done restart map or server and enjoy

The Map names below are the buttons that i setup for you already 
If you have another map that you want the button to be detect just look at the button in game and type this amx_set_button then restart map.

jail_aj_ultimate_v2
jail_arizona
some1s_jailbreak
jail_revolution
jail_greytown
jb_snow
jail_sanctuary