Customising templates

Thanks, Shane. Yes I do seem to have understood correctly. Here’s what I’ve got at the moment. I added ‘here’ at the end of the h1 heading just to see if anything was happening. It’s picking up the correct search results, but is using the listing from your plugin, not my theme copy. I’ve copied acps-results.php into my theme as well but haven’t changed it.

<?php
//New results loop
$acps_results = new WP_Query( $this->acps_args );

//Standard loop
if( $acps_results->have_posts() ): ?>

<header class="page-header">
    <h1 class="page-title"><?php _e('Search Results','acps');?>here</h1>
</header>

<?php while( $acps_results->have_posts() ) : $acps_results->the_post(); 

// Start the Loop.
                while ( have_posts() ) : the_post(); 

                    /*
                     * Include the post format-specific template for the content. If you want to
                     * use this in a child theme, then include a file called called content-___.php
                     * (where ___ is the post format) and that will be used instead.
                     */
                    get_template_part( 'content', 'event-single' );

                endwhile;

                // Previous/next page navigation.
                twentyfourteen_paging_nav();

	endwhile;
	else:
	?>

    <header class="page-header">
        <h1 class="page-title"><?php _e( 'Nothing Found', 'acps' ); ?></h1>
    </header>

    <div class="page-content">
        <p><?php _e( 'Sorry, but nothing matched your search terms. Please try again with some different keywords.', 'acps' ); ?></p>
        <?php get_search_form(); ?>
    </div>

<?php
endif;
?>

I’m using v 1.2.1
I think I might have sorted it – it certainly now finds my theme, though I don’t know if it will cause problems anywhere else. I changed line 49 of acps.php to:

'template_path' => trailingslashit(get_stylesheet_directory()),

it was using get_template_directory, which picks up the parent theme

Sorry I should have made that clearer. Thanks very much for a very useful plugin and glad to have helped.