alterar a linha do meio:
<code>
<?php if ($block->subject): ?>
<h2><?php print $block->subject ?></h2>
<?php endif;?>
</code>

por:
<code>
<h2><a href="<?php print base_path(); ?>publications/gallery"><?php print $block->subject ?></a></h2>
</code>

http://drupal.org/node/207607

Theming blocks individually, by region, or by module
http://drupal.org/node/104319