As it turns out, the error allowed me to see your very excellent 404 page and it made me smile. Maybe you should not have them correct it after all!

Thanks.

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function cws_ci_fix_count($comment_ID) {
global $wpdb, $comment_count_cache;
$post_id = (int) $wpdb->get_var(“SELECT comment_post_ID FROM $wpdb->comments WHERE comment_ID = ‘$comment_ID’”);
$new = (int) $wpdb->get_var(“SELECT COUNT(*) FROM $wpdb->comments WHERE comment_post_ID = ‘$post_id’ AND (comment_approved = ’1′ OR comment_approved = ’0′)”);
$wpdb->query(“UPDATE $wpdb->posts SET comment_count = ‘$new’ WHERE ID = ‘$post_id’”);
$comment_count_cache[$post_id] = $new;
}
add_filter( ‘comment_post’, ‘cws_ci_fix_count’ );

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One problem, however, is that calls to comments_number() and similar functions fail — here’s an additional function to make it set the comment counts correctly:

function cws_ci_fix_count($post_id, $new, $old) {
global $wpdb, $comment_count_cache;
$new = (int) $wpdb->get_var(“SELECT COUNT(*) FROM $wpdb->comments WHERE comment_post_ID = ‘$post_id’ AND (comment_approved = ’1′ OR comment_approved = ’0′)”);
$wpdb->query(“UPDATE $wpdb->posts SET comment_count = ‘$new’ WHERE ID = ‘$post_id’”);
$comment_count_cache[$post_id] = $new;
}
add_filter( ‘wp_update_comment_count’, ‘cws_ci_fix_count’ );

I bet that’s going to be ugly…