File config.inc.php contain settings

$cfg['img_per_page'] = 7;           - images per one page
$cfg['img_dir'] = 'pics/';          - folder with images
$cfg['links_file'] = 'links.txt';   - file with urls and image names
$cfg['default_link'] = '#';         - default link url if url in file is empty

File links.txt like

pic1.jpg : http://www.bomonti.co.uk/shopcart/product.php?productid=16134&cat=0&page=1
pic2.jpg : http://www.bomonti.co.uk/shopcart/product.php?productid=16134&cat=0&page=1
...