Bukkit

Installing nChat is an easy process. To start, place the nChat.jar into your plugins folder. After you reload/restart the server, nChat will generate it's config. You can change this, but it isn't required for right now. Click here to see more information about the configuration.

Now that you have installed nChat, it's time to setup the Permissions plugin you are using for it.

PermissionsEx:

    Admin:
        options:
            prefix: '&b'
            suffix: ''

bPermissions:

    Admin:
        meta:
            prefix: '&b'
            suffix: ''

SuperPermissions:

In your info.yml which is in the nChat directory:

prefixes:
    Admin: '&b'

In your Permissions configuration:

Admin:
    permissions:
    - 'nChat.info.admin'

This will give admins an aqua prefix. You can do this for all of your other groups and change the values.