--- sandbox/comments.php	2008-06-17 10:25:38.000000000 +0000
+++ sandbox_mod/comments.php	2008-08-29 15:52:01.625910587 +0000
@@ -87,7 +87,7 @@
 
 <?php else : ?>
 					<div class="formcontainer">	
-						<form id="commentform" action="<?php bloginfo('wpurl') ?>/wp-comments-post.php" method="post">
+						<form id="commentform" action="<?php bloginfo('template_url') ?>/wp-comments-post.php" method="post">
 
 <?php if ( $user_ID ) : ?>
 							<p id="login"><?php printf( __( '<span class="loggedin">Logged in as <a href="%1$s" title="Logged in as %2$s">%2$s</a>.</span> <span class="logout"><a href="%3$s" title="Log out of this account">Log out?</a></span>', 'sandbox' ),
--- sandbox/wp-comments-post.php	1970-01-01 00:00:00.000000000 +0000
+++ sandbox_mod/wp-comments-post.php	2008-08-29 15:48:00.649910054 +0000
@@ -0,0 +1,136 @@
+<?php
+/**
+ * Handles Comment Post to WordPress and prevents duplicate comment posting.
+ *
+ * @package WordPress
+ */
+
+function wp_die_l( $message, $title = '' ) {
+    global $wp_locale;
+
+    if ( function_exists( 'is_wp_error' ) && is_wp_error( $message ) ) {
+        if ( empty($title) ) {
+            $error_data = $message->get_error_data();
+            if ( is_array($error_data) && isset($error_data['title']) )
+                $title = $error_data['title'];
+        }
+        $errors = $message->get_error_messages();
+        switch ( count($errors) ) :
+        case 0 :
+            $message = '';
+            break;
+        case 1 :
+            $message = "<p>{$errors[0]}</p>";
+            break;
+        default :
+            $message = "<ul>\n\t\t<li>" . join( "</li>\n\t\t<li>", $errors ) . "</li>\n\t</ul>";
+            break;
+        endswitch;
+    } elseif ( is_string($message) ) {
+        $message = "<p>$message</p>";
+    }
+
+    if ( defined('WP_SITEURL') && '' != WP_SITEURL )
+        $admin_dir = WP_SITEURL.'/wp-admin/'; 
+    elseif (function_exists('get_bloginfo') && '' != get_bloginfo('wpurl'))
+        $admin_dir = get_bloginfo('wpurl').'/wp-admin/'; 
+    elseif (strpos($_SERVER['PHP_SELF'], 'wp-admin') !== false)
+        $admin_dir = '';
+    else
+        $admin_dir = 'wp-admin/';
+
+get_header() ?>
+	<div id="container">
+		<div id="content">
+			<div id="comment-error" class="sandbox_comment_error">
+				<h2 class="entry-title">Error</h2>
+				<div class="entry-content">
+<?php echo $message; ?>
+				</div>
+			</div><!-- .post -->
+		</div><!-- #content -->
+	</div><!-- #container -->
+<?php
+    get_sidebar();
+    get_footer();
+    die();
+}
+
+if ( 'POST' != $_SERVER['REQUEST_METHOD'] ) {
+	header('Allow: POST');
+	header('HTTP/1.1 405 Method Not Allowed');
+	header('Content-Type: text/plain');
+	exit;
+}
+
+/** Sets up the WordPress Environment. */
+require( dirname(__FILE__) . '/../../../wp-load.php' );
+
+nocache_headers();
+
+$comment_post_ID = (int) $_POST['comment_post_ID'];
+
+$status = $wpdb->get_row( $wpdb->prepare("SELECT post_status, comment_status FROM $wpdb->posts WHERE ID = %d", $comment_post_ID) );
+
+if ( empty($status->comment_status) ) {
+	do_action('comment_id_not_found', $comment_post_ID);
+	exit;
+} elseif ( !comments_open($comment_post_ID) ) {
+	do_action('comment_closed', $comment_post_ID);
+	wp_die_l( __('Sorry, comments are closed for this item.') );
+} elseif ( in_array($status->post_status, array('draft', 'pending') ) ) {
+	do_action('comment_on_draft', $comment_post_ID);
+	exit;
+}
+
+$comment_author       = trim(strip_tags($_POST['author']));
+$comment_author_email = trim($_POST['email']);
+$comment_author_url   = trim($_POST['url']);
+$comment_content      = trim($_POST['comment']);
+
+// If the user is logged in
+$user = wp_get_current_user();
+if ( $user->ID ) {
+	$comment_author       = $wpdb->escape($user->display_name);
+	$comment_author_email = $wpdb->escape($user->user_email);
+	$comment_author_url   = $wpdb->escape($user->user_url);
+	if ( current_user_can('unfiltered_html') ) {
+		if ( wp_create_nonce('unfiltered-html-comment_' . $comment_post_ID) != $_POST['_wp_unfiltered_html_comment'] ) {
+			kses_remove_filters(); // start with a clean slate
+			kses_init_filters(); // set up the filters
+		}
+	}
+} else {
+	if ( get_option('comment_registration') )
+		wp_die_l( __('Sorry, you must be logged in to post a comment.') );
+}
+
+$comment_type = '';
+
+if ( get_option('require_name_email') && !$user->ID ) {
+	if ( 6 > strlen($comment_author_email) || '' == $comment_author )
+		wp_die_l( __('Error: please fill the required fields (name, email).') );
+	elseif ( !is_email($comment_author_email))
+		wp_die_l( __('Error: please enter a valid email address.') );
+}
+
+if ( '' == $comment_content )
+	wp_die_l( __('Error: please type a comment.') );
+
+$commentdata = compact('comment_post_ID', 'comment_author', 'comment_author_email', 'comment_author_url', 'comment_content', 'comment_type', 'user_ID');
+
+$comment_id = wp_new_comment( $commentdata );
+
+$comment = get_comment($comment_id);
+if ( !$user->ID ) {
+	setcookie('comment_author_' . COOKIEHASH, $comment->comment_author, time() + 30000000, COOKIEPATH, COOKIE_DOMAIN);
+	setcookie('comment_author_email_' . COOKIEHASH, $comment->comment_author_email, time() + 30000000, COOKIEPATH, COOKIE_DOMAIN);
+	setcookie('comment_author_url_' . COOKIEHASH, clean_url($comment->comment_author_url), time() + 30000000, COOKIEPATH, COOKIE_DOMAIN);
+}
+
+$location = ( empty($_POST['redirect_to']) ? get_permalink($comment_post_ID) : $_POST['redirect_to'] ) . '#comment-' . $comment_id;
+$location = apply_filters('comment_post_redirect', $location, $comment);
+
+wp_redirect($location);
+
+?>