Shoutbox

ok so basicly when i go into my preferences and to my installed add ons i see this:


I want to change the settings (so i can set my picture to change in this case) but i cant see how or where i can do this. I have tried un-installing and deleting program file then reinstalling and trying other addons so i just don't know why i cant see the option to change the plugins setting. Please help.
I have teamviewer if anyone can control my pc to help me.