Minecraft Bukkit plugins

So I recently got my minecraft server running using BukkitGUI. I really want this plugin called "SmartArrows" so I installed it. Then I stopped and restarted my server twice and loaded minecraft. On Minecraft I did /plugins because that shows all the plugins I have installed. All of my plugins were there except SmartArrows. I'm a newbie and wasn't sure if there's anything else to do. All my other plugins worked just by installing it and using the appropriate command in Minecraft. SmartArrows commands won't work and neither will it appear in plugins in minecraft. On BukkitGUI it says I have installed it and I checked if it is compatible and it is (1.7.2). What should I do? Is there anything else I need to do?

Help?!

Here is the link to the plugin I want,

http://dev.bukkit.org/...art-arrows

Added (1). It's not Jack, I have installed other plugins that are 1.7.2 just like the version of my Bukkit, and they work. It's just SmartArrows don't work. Is there anything more I need to do other than just install the plugin and restart the server?

The current version of MC is 1.7.4 not 1.7.2 so my guess would be that your running a 1.7.4 version of bukkit and the plugin hasn't been updated yet (if this isn't your first pluggin install)