SimpleAFK - Plugin setup
Just copy the SimpleAFK.jar file into your Plugins folder. Upon first startup it will create a folder "SimpleAFK" containing the default config file (all messages in english) in which you can do all further configurations. The default config file is commented and should be pretty self-explanatory ;)
I've also posted the links to ZIP-Archives including the Plugin and the Config-file (one with english and one with german messages).