I'm assuming this is a Hamachi server because the I.P. starts with 5. If it is a Hamachi server I suggest telling people this and putting your Hamachi ID and Password in the description too. If I am mistaken and this is a regular server then I have nothing to say here.
Minecraft Name: eightdarkskulls Age: 13 Why do you want to be a builder?: I have a craving for creativity (Pardon my SpongeBob reference) Do you want creative?: I would love it.
Hi LightFeather, I'm assuming you already have a Planet Minecraft post, that's probably the best way to get people. In order to become more popular you need to advertise more, http://www.planetminecraft.com/http://www.minecraftforum.net/http://minecraftservers.net/http://mcserverlist.net/http://minestatus.net/ and probably more websites. Next you'll probably want to update these posts frequently. Don't spam or anything because that'll probably get you banned. The last step I can think of at the moment is provide something people want. That can be epic buildings, nice community, functionality, cool commands, anything that could possibly get people on your server and stay there.
I hope this helped you and if you have any questions please pm me or reply to my comment.
To make another world in your server use a plugin like Multiverse (like what he said) and change the creative world to creative in the config of the server. That method works if you don't want the people in the creative world to have any different commands than the ones in the prison world. Keep in mind that method is for PEX.
For Group Manager just change the permissions file on the worlds. For example, make it so the people on the prison world only have what you want them to have, then copy that file over and add the /gm command to the creative one, or, just make a completely new permissions file for the map.
I hope this helped and if you have any problems or questions just message me!
I can help you with ALL of those things. It might take a little while though.
You'll either need to port-forward or use hamachi, if you know your router username and password I suggest port-forwarding, (look up a tutorial.)
To add plugins you'll need to use Bukkit. Bukkit isn't the regular Minecraft server you get from www.minecraft.net you get it from www.bukkit.org Once you have Bukkit jar file go to their wiki and follow the setting up a server instructions. Once you have ran the server at least once there will be a plugins folder that you can add plugin .jars to. If you need more help on plugins follow a tutorial on youtube.
To make yourself op go into the console of your server and type "op <your username>" but without the " or <>'s and change it to your username.
To make multiple worlds you will need a plugin like Multiverse. Again, tutorial for more help.
To make one flat you'll either want to import a world or use a plugin to make the world flat. I think you can also make flat worlds through Multiverse but I'm not sure.
And to change your game mode type /gamemode <your username> <value> Your username is your username and value is 0 or 1. 0 is survival while 1 is creative. A lot of plugins make it so you can type /gm instead of having to write all of that.
I hope this helped and if you have any more questions just message me!