Hola pero funciono?
Las lineas fueron estas:
Código PHP:
echo '<li><a href="inc/img.php?i='.$value.'" rel="'.$currentDir.'" title=""><img src="inc/img.php?c='.$value.'&w='.$sg_twidth.'&h='.$sg_theight.'"></a></li>';
} else {
echo '<li><a href="'.$sg_path.'/inc/img.php?i='.$value.'" rel="'.$currentDir.'" title=""><img src="'.$sg_path.'/inc/img.php?c='.$value.'&w='.$sg_twidth.'&h='.$sg_theight.'"></a></li>';