Wordpress NextGen Gallery template with download links

<?php
/**
Template Page for the gallery overview with DOWNLOAD LINKS for photos; requires force-download.php

Follow variables are useable :

    $gallery     : Contain all about the gallery
    $images      : Contain all images, path, title
    $pagination  : Contain the pagination content

 You can check the content when you insert the tag <?php var_dump($variable) ?>
 If you would like to show the timestamp of the image ,you can use <?php echo $exif['created_timestamp'] ?>
**/
?>
<?php if (!defined ('ABSPATH')) die ('No direct access allowed'); ?><?php if (!empty ($gallery)) : ?>

<div class="ngg-galleryoverview" id="<?php echo $gallery->anchor ?>">

<?php if ($gallery->show_slideshow) { ?>
    <!-- Slideshow link -->
    <div class="slideshowlink">
        <a class="slideshowlink" href="<?php echo $gallery->slideshow_link ?>">
            <?php echo $gallery->slideshow_link_text ?>
        </a>
    </div>
<?php } ?>

<?php if ($gallery->show_piclens) { ?>
    <!-- Piclense link -->
    <div class="piclenselink">
        <a class="piclenselink" href="<?php echo $gallery->piclens_link ?>">
            <?php _e('[View with PicLens]','nggallery'); ?>
        </a>
    </div>
<?php } ?>

<h1><?php echo $gallery->description ?></h1>
<p><a class="block-button button-nb" title="regresar" href="../">Regresar a Categorías</a></p><br />
    <!-- Thumbnails -->
    <?php foreach ( $images as $image ) : ?>

    <div id="ngg-image-<?php echo $image->pid ?>" class="ngg-gallery-thumbnail-box" <?php echo $image->style ?> >
        <div class="ngg-gallery-thumbnail" >
            <a href="<?php echo $image->imageURL ?>" title="<?php echo $image->alttext ?>" <?php echo $image->thumbcode ?> > <!-- changed title description to alttext NB -->

                <?php if ( !$image->hidden ) { ?>
                <img title="<?php echo $image->alttext ?>" alt="<?php echo $image->alttext ?>" src="<?php echo $image->thumbnailURL ?>" <?php echo $image->size ?> />
                <?php } ?>
            </a>
<!-- ADD DOWNLOAD LINK, changed image-caption to image-alttext   -->
<span><?php echo $image->alttext ?><br /><?php if ($image->caption!=" "){echo $image->caption ?> <?php }; ?><a href=" <?php home_url(); ?> /force-download.php?file=<?php echo substr(parse_url($image->imageURL,PHP_URL_PATH),1); ?> ">Download</a></span>
                </div>
    </div>
    <?php if ( $image->hidden ) continue; ?>
    <?php if ( $gallery->columns > 0 && ++$i % $gallery->columns == 0 ) { ?>
    <br style="clear: both" />
    <?php } ?>
    <?php endforeach; ?>

    <!-- Pagination -->
    <?php echo $pagination ?>

</div>

<?php endif; ?>