Comment on WordPress Hacks by SEO Dave.

WordPress Hacks Not too many questions then :-)

Sitemap:

You’ll need to replace some of the code within sitemaps.php.

Find the code:

<?php $archive_query = new WP_Query('showposts=1000');
while ($archive_query->have_posts()) : $archive_query->the_post(); ?>
<li><a href="<?php the_permalink() ?>" rel="bookmark" title="Permanent Link to <?php the_title(); ?>"><?php the_title(); ?></a> (<?php comments_number('0', '1', '%'); ?>)</li>
<?php endwhile; ?>

Replace with:

<?php wp_get_archives('type=alpha&limit=1000'); ?>

David