Post Slider with Link Post Types

Hey Lissasan,
Sorry for the very late reply and thanks for your patience. To change the post slider img link to the same link in the post slider excerpt, try adding this code to the end of your functions.php file in Appearance > Editor:

function custom_script() { ?>
    <script>
(function($){
  $(document).ready(function(){
  $("article.slide-entry").each(function(){
    var callinkurl = $(this).find(".slide-entry-excerpt.entry-content a.callink").attr("href");
    $(this).find("a.slide-image").attr("href", callinkurl);

});
});
})(jQuery);
</script>
    <?php
}
add_action('wp_footer', 'custom_script');

I tested this on your test page by injecting the javascript via the browser and it worked correctly, but a key point is that your post slider excerpt link has the custom class “callin”, so please ensure you continue to add this custom class.
Please give this a try and let me know if this helps.

Best regards,
Mike