simply put “$posts_per_page = 80;” (without quotes) on your archive page. as you can see below, i’ve just put that line below “$blog = 1;”. i don’t know if this is a good way to achive that, but it works for me.
<?php /* Don’t remove these lines, they call the b2 function files ! */
$blog = 1;
$posts_per_page = 80;
require_once(‘blog.header.php’);
require_once($abspath.’wp-links/links.php’);
// not on by default: require_once($abspath.’wp-links/links.weblogs.com.php’);