Breadcrumbs, for those in need :)

Finally I’ve managed to do what I wanted(add breadrumbs). So, If you need to add breadcrumbs to marketpress, add this to functions.php of your theme. Then you must add <?php the_breadcrumb() ;?> where you want to place them, and style them using css.

function the_breadcrumb() {
if (!is_home()) {
echo '<a href="';
echo get_option('home');
echo '">';
bloginfo('name');
echo " » ";
if (is_category() || is_single()) {
$ID = $wp_query->post->ID;
$categoria = mp_category_list($ID);
echo $categoria;
if (is_single()) {
echo " » ";
the_title();
}
} elseif (is_page()) {
echo the_title();
}
}
}

I’ve added <?php the_breadcrumb() ;?> inside a div, like this

<div class="breadcrumbs"><?php the_breadcrumb(); ?></div>

and this is the css that I’ve used :

#content .breadcrumbs{
width:100%;
float:left;
color:#E02D30;
font-size:10px;
}
#content .breadcrumbs a{
color:#E02D30;
}