Amon

if a post is visited then reload the cache for that post?

I am sorry, You may get contact with the plugin author(if you can, or someone else known how WP Super Cache works), to solve this problem.

Here is some change to support WP Super Cache.
WP-PostViews 1.62

function process_postviews() {
	//...
		//...
			if($should_count) {
				global $cache_enabled; //WP Super Cache enabled or not
				if(defined('WP_CACHE') && WP_CACHE && $cache_enabled) {
					echo "\n".'<!-- Start Of Script Generated By WP-PostViews -->'."\n";
					//...
				} else {
					//...
				}
			}
		//...
	//...
}

function add_postviews_column($defaults) {
    $defaults['views'] = __('Views', 'wp-postviews');
    return $defaults;
}

//AJAX get post views
add_action( 'wp_ajax_postviews_get', 'postviews_get' );
add_action( 'wp_ajax_nopriv_postviews_get', 'postviews_get' );
function postviews_get() {
	if ( !empty( $_GET['postviews_id'] ) ) {
		$post_id = intval( $_GET['postviews_id'] );
		if ( $post_id > 0 ) {
			$views_options = get_option( 'views_options' );
			$post_views = get_post_custom( $post_id );
			$output = str_replace( '%VIEW_COUNT%', number_format_i18n( intval( $post_views['views'][0] ) ), $views_options['template'] );
			$output = apply_filters( 'the_views', $output );
			echo $output;
		}
	}
	exit();
}

//the_views support WP Super Cache via AJAX
function the_views( $display = true, $prefix = '', $postfix = '', $always = false ) {
	$output = '';
	$views_options = get_option( 'views_options' );
	if ( $always || should_views_be_displayed( $views_options ) ) {
		global $cache_enabled;
		if ( defined( 'WP_CACHE' ) && WP_CACHE && $cache_enabled ) {
			global $post;
			if ( is_int( $post ) ) {
				$post = get_post( $post );
			}
			$id = intval( $post->ID );

			wp_print_scripts( 'jquery' );
			$output = "\n" . '<!-- Start Of Script WP-PostViews Get Action -->' . "\n";
			$output .= '<font id="views_' . $id . '">&nbsp;</font>' . "\n";
			$output .= '<script type="text/javascript">' . "\n";
			$output .= '/* <![CDATA[ */' . "\n";
			$output .= "jQuery.ajax({type:'GET',url:'" . admin_url( 'admin-ajax.php', ( is_ssl() ? 'https' : 'http' ) ) . "',data:'postviews_id=" . $id . "&action=postviews_get',cache:false,complete:function(jqXHR,textStatus){var obj=jQuery('#views_" . $id . "');obj.before('" . $prefix . "'+jqXHR.responseText+'" . $postfix . "');obj.remove();}});\n";
			$output .= '/* ]]> */' . "\n";
			$output .= '</script>' . "\n";
			$output .= '<!-- End Of Script WP-PostViews Get Action -->' . "\n";
		} else {
			$output = $prefix . str_replace( '%VIEW_COUNT%', number_format_i18n( intval( post_custom( 'views' ) ) ), $views_options['template'] ) . $postfix;
			$output = apply_filters( 'the_views', $output );
		}
	}
	if ( $display ) {
		echo $output;
		return '';
	} else {
		return $output;
	}
}