[Help Wordpress] Slider on posts not working, shows one slide on top of the next

Thanks but it didn't work. I tryed this: I deleted the following line
wp_enqueue_script('jquery', get_template_directory_uri().'/includes/js/jquery.min.js', false, '1.6.4');
In the code below wich is in the custom-functions.php file:

/*-----------------------------------------------------------------------------------*/ /* Register and deregister Scripts files /*-----------------------------------------------------------------------------------*/ if(!is_admin()) {
add_action( 'wp_print_scripts', 'my_deregister_scripts', 100 );
}

function my_deregister_scripts() {
wp_deregister_script( 'jquery' );
wp_enqueue_script('jquery', get_template_directory_uri().'/includes/js/jquery.min.js', false, '1.6.4');
wp_enqueue_script('jquery-superfish', get_template_directory_uri().'/includes/js/superfish.js', false, '1.4.2');
wp_enqueue_script('jquery-custom', get_template_directory_uri().'/includes/js/custom.js', false, '1.4.2');
wp_enqueue_script('jquery-ui', get_template_directory_uri().'/includes/js/jquery-ui-1.8.5.custom.min.js', false, '1.8.5'); wp_enqueue_script('jquery-flexislider', get_template_directory_uri().'/includes/js/jquery.flexslider.js', false, '1.0');

    //wp_enqueue_script('jquery-lazyload');

if ( is_singular() && get_option('thread_comments') ) wp_enqueue_script( 'comment-reply' );
}

.

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