.php template help – query string

Hello,

I am working with a page .php template to create an image gallery with pagination showing 30 images per page. The page as it looks now can be found here:

https://www.bespokeordie.com/image-gallery/

This is the code I am using:

<?php/*Template Name: Image Gallery Full*/?>

<?php get_header(); ?>	

<!-- Middle Starts -->	

<div id="middle-out-top">
<div id="middle-out-bottom">
<div id="middle-content" class="full">
<div id="middle-content-bottom" class="full">		

<!-- Content Starts -->		

<div id="content" class="wrap full">
<div id="main-content" class="fullwidth">
<div class="page post wrap">					

<br /><br />            						

<h2 class="arh"><?php the_title(); ?></h2>			                            

<?php query_posts('showposts=30'); ?>
<?php if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>
<?php $wp_query->is_home = false; ?>
<?php woo_get_image('image','thumbnail','','','thumbnail gallery'); ?>
<?php endwhile; endif; ?>	

<div class="more_entries wrap">
<?php if (function_exists('wp_pagenavi')) { ?><?php wp_pagenavi(); ?><?php } ?>
</div>
</div>
</div>
</div>		

<!-- Content Ends -->	

</div>
</div>
</div>
</div>	

<!-- Middle Ends -->	

<?php get_footer(); ?>

I have tried doing my homework, but failed multiple times with the $query_string function. See my previous failed attempts here:

https://www.ads-software.com/support/topic/280185?replies=8

Does anyone have any suggetions? This code is so small and so basic, yet I am struggling over and over again. Please help.