xiaolai

I’ve fixed this, here’s the notes I’ve post on myblog(http://www.lixiaolai.com):
This is not because of your .htaccess configuration, but becausae of the mechanism of the query_post() function used by WordPress. When you’re using “index.php” as your “homepage”, the default query is used, but if you’re using “home.php” as your homepage (or you’re using a page template elsewhere), you’re in fact expected to use a customized query.

In any page template, including user-defined “home.php”, you’d better define your own query, don’t simply write:

<?php query_posts(); ?>
<?php query_posts( 'posts_per_page=25' ); ?>

rahter, you should construct a new instance of $wp_query:

<?php
$myqueryname = $wp_query;
$wp_query = null;
$wp_query = new WP_Query();
$wp_query->query('showposts=5'.'&paged='.$paged);
?>

…, and then you can start the loop:

<?php if (have_posts()) : ?>
  <?php while (have_posts()) : the_post(); ?>
  ... do whatever you like
  <?php endwhile; ?>
<?php else : ?>
  ... what if there's no post matching myquery?
<?php endif; ?>

… and now your navigation links should work properly:

<div class="navigation">
  <div class="alignleft"><?php previous_posts_link('« Previous') ?></div>
  <div class="alignright"><?php next_posts_link('More »') ?></div>
</div>

… and, you’d better not to forget destruct your instance of $wp_query:

<?php $wp_query = null; $wp_query = $myqueryname;?>

Here’s the complete code of a page template that has working navigation links:

<?php
/*
Template Name: //Define Your Template Name Here
*/
?>

<?php get_header(); ?>
  <?php
  $myqueryname = $wp_query;
  $wp_query = null;
  $wp_query = new WP_Query();
  $wp_query->query('showposts=25'.'&paged='.$paged);
?>
  <?php if (have_posts()) : ?>
    <?php while (have_posts()) : the_post(); ?>
    ...
    <?php endwhile; ?>
  <?php else : ?>
  ...
  <?php endif; ?>

<div class="navigation">
  <div class="alignleft"><?php previous_posts_link('« Previous') ?></div>
  <div class="alignright"><?php next_posts_link('More »') ?></div>
</div>

<?php $wp_query = null; $wp_query = $myqueryname;?>

<?php get_sidebar(); ?>
<?php get_footer(); ?>