I tried entering this message on your website, but upon clicking the Add Comment button, there was a database connection error showing.
I love your plug-in. I have one question though, and it might be my permission settings that aren't right. The icons appear when they feel like it :-). Usually, I have to load a page a couple of times before they become visible.
I first tried different browsers, but that doesn't help, so it's server-based. Then I tried changing permissions (777 on the plug-in dir, 777 on the dirs inside...) on the directories, but that doesn't do much good either.
It's not a big deal of course, but it would be nice of they did appear. I'm running CentOS 6.3 x86_64, PHP 5.4.8, MySQL 5.1.66-cll and Apache 2.2.23. No caches on my Wp installation.