Gamemode

Hello all!

I came for a discussion/help on how I can get the PrisonRP gamemode to work (Or how to create?)
I have been told simply by many to grab a fresh copy of the DarkRP and to change the “darkrp.txt” - The first one to “prisonroleplay” or “prisonrp” and the second one to “PrisonRP”
Neither has worked so it would be good if someone with the knowledge of how to do this. A screenshot below of where i’d like it to be listed as I plan to make the only current working British PrisonRP server.