[New to Bukkit] Need help with plugins, some reason won't work

Hey guys, I'm very new to Bukkit and what I am trying to do is get the ranks system set up so whenever I speak it will say
[Owner] Willijuana: blahblahblah
[Moderator] AfroJack: blahblahblah
Here is a list of my plugins: Red= Folers, Black= .jar
ChatManager Simple Prefix
ChestShop WorldEdit
Essentials WorldGuard
Gringotts
Modifyworld
PermissionsBukkit
PluginMetrics
SilkSpawner
Silkspawner.jar
Worldedit.jar
worldguard.jar
ChestShop
Essentials.jar
EssentialsSpawn.jar
ModifyWorld.jar
PermissionsBukkit -2.0.jar
If you need to see any of the coding, let me know please

Red text is folders

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

In the Essentials config it has a section on changing how the chat looks per group, it works with Group Manager, but I'm not sure about the other permission plugins.

The lines are;
format: '<{DISPLAYNAME}> {MESSAGE}'
#format: '&7[{GROUP}]&r {DISPLAYNAME}&7:&r {MESSAGE}'

group-formats:
# Default: '{WORLDNAME} {DISPLAYNAME}&7:&r {MESSAGE}'
# Admins: '{WORLDNAME} &c[{GROUP}]&r {DISPLAYNAME}&7:&c {MESSAGE}'

To enable the format type, just remove the #.
To disable a format type, simply add a #

If you do not wish to use Group Manager, there are other chat plugins out there that can do the same thing ([Group] [Username]: <Message>).

Quick BukkitDev search;
http://dev.bukkit.org/search/?scope=projects&search=chat&search_filter_version