I have just installed your plugin, but no related post lists. I assume that I have probably done something wrong, but can't figure out what. Maybe an incompatible plugin, who knows.
This is the first time that a plugin fails in my blog and I am really concerned because I would like to enjoy your wonderful plugin.
My blog can be found here: http://www.aratic.es/wordpress
Thank you in advance for your help and congrats for your wonderful work!