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i have the same problem

i tryed
<?php echo(get_category_parents($cat, TRUE, ‘ » ‘)); ?>
and
<?php echo get_the_category($post->post_parent) ?>
it didn`t work

I have such a thing, but I want to get a direct link to the jpg, I want to open this picture in the window .. now shows only the image size specified in the file: function.php

my code:

$args = array(
‘cat’ => 21,
‘showposts’ => 1,
‘orderby’ => ‘modified’
);
query_posts($args);
if ( have_posts() ) : while ( have_posts() ) : the_post();
echo ‘<h2 class=”widgettitle”>Rysunek dnia</h2>’;
echo get_the_post_thumbnail($post->ID, ‘rysunekdnia’);
// if(has_post_thumbnail()) the_post_thumbnail(‘rysunekdnia’);
endwhile; else: endif;
wp_reset_query();