[ HELP ] Flag comments 1.7

I have be tried Flag comment 1.7 does not working for wp 2.5 so i did try <?php do_action(’flag_comment_link’); ?> in wp-content/themes/template/comments.php
Website’s flag comments plugin:
http://watershedstudio.com/portfolio/software-development/flag-comments/
I did send to author so he never reply me at all. 🙁

any1 have experience with it problem? i’m really need badly.

Thank you