Modularity Lite 1.3 slideshow only shows 2 images

update:

just found out it only shows featured images from posts that are showing on homepage only.

so once these posts are off the homepage, they are not included in slideshow at all.

what do i need to change, so that it looks for featured images that are 950×425 from all the posts including post that are not on homepage?

<?php if ( $options['slideshow'] != 0 ) : ?>
	<div id="slideshow">
	<?php
	// Start a new query that looks at all the posts on the home page.
	$mod_slide = new WP_Query();
	$mod_slide->query( 'order=DESC&caller_get_posts=1' );

	while ($mod_slide->have_posts()) : $mod_slide->the_post();

		// Check to see if the posts have attachments.
		$attachments = get_children(array('post_parent' => get_the_ID(), 'post_type' => 'attachment', 'post_mime_type' => 'image', 'orderby' => 'menu_order'));
		if ( empty( $attachments ) )
			continue;

		// Set our attachment variable.
		$first_attachment = '';

		// Awesome! We have attachments! Let's grab the first one that's 950px x 425px.
		foreach ( $attachments as $attachment ) {
			$image = wp_get_attachment_image_src( $attachment->ID, 'modularity-slideshow' );

			if ( $image[1] >= 950 && $image[2] >= 425 ) {
				$first_attachment = $attachment;
				break;
			}
		}	

		// Cool. Now, if we actually have an attachment, let's pop it into our slideshow.
		if ( $first_attachment != '' ) { ?>
			<div class="slide"><a href="<?php the_permalink(); ?>" rel="bookmark"><?php echo wp_get_attachment_image($first_attachment->ID, 'modularity-slideshow' ); ?></a></div>
		<?php }

	endwhile;
	?>
	</div><!-- end slideshow -->