Emoticons not showing up in comments

I have just installed and activated this plugin on my blog http://beautyandmakeupmatters.com.
I am able to insert the emoticons in comments but they are not showing up as images but only text corresponding to that image is coming.

Though I am able to see the images in Comment Dashboard. Please help so that I can make them appear in comments! 🙂

http://wordpress.org/plugins/zaazu-emoticons/