[Plugin: SEO Super Comments] How do you tell if it's working or not…..?

Just see if comment author name is clickable, click on it and check if the link redirects you to the self-made post.
Id it does not work try commenting these 3 lines:

if ($comcount<$mincomcount)
		return strip_tags($link);
	else return $this->strip_nofollow($link);