[SOLVED] Add property in index.php

Hi everybody!!!
I'm trying to add a calendar icon besides the post title. It' supposed I should add this:

<div class="the_date"><span class="date_m"></span> <span class="date_d"></span></div>

before this:

<?php the_permalink(); ?>

in the index.php page, but there is nothing like that. Is there any other place?
Where should I work to add those instructions?

I found another thread talking about that, but unfortunately not solved....

Thanks in advanced!!!