The first thing to remember is, CommentLuv is a Java-based script, and thus you have to allow Javascript to run on your browser. Don’t be like me, activating NoScript on my Firefox and was wondering why CommentLuv didn’t work. My instructions, once again, is a modified version of instructions posted on commentluv.com. This instructions have been tested thoroughly and confirmed working. I recommend you to follow these instructions step by step so there won’t be any mistakes happened, don’t forget to backup your template.