[Plugin: Get The Image] Pull 8 Random Images From Custom Field On Post

This is a great plugin and I use it for 2 things. Currently to pull an image into the excerpt of each post on the front page.

I’m working on a new theme and want to pull the 7 random images from my posts to display (custom field for this in my posts is thumb_gallery.) The following query works fine but pulls only those images returned in the have_posts()function.

I’m thinking in order to pull the posts randomly I need to write a new query and a new function to grab a random post, custom field, and required other fields.

Anyone expereinced with this plugin attempt to pull random custom fields.

<?php if ( have_posts() ) : while ( have_posts() ) : the_post(); ?>

<?php get_the_image( array( 'custom_key' => array( 'thumb_gallery' ), 'default_size' => 'medium', 'width' => '100', 'height' => '100', 'image_class' => 'tm_image' ) ); ?>
<?php endwhile; endif; ?>
</div>

thanks