Pagination in archive problem!

Hey!

I use a month archive and in the month archive i have a pagination. I can’t get it working. Here’s some code:

<?php
	$totalposts = $wp_query->found_posts;
	$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
	$per_page = get_query_var('posts_per_page');
	$last_page = ceil($totalposts / $per_page);

	if($last_page > $paged) { next_posts_link('< '); }
	else { echo '< ';}

	echo "<strong>" .$paged. "</strong>";

	if($paged > 1) { previous_posts_link(' >'); }
	else { echo ' >';}
?>

This produces “< 1 >”, the arrows are links.

This works fine if you’re not in the month archive.

I use the exact same code in index.php and archive.php, exept for that I use the following code in archive.php:

<?php
$month=get_query_var('monthnum');
$posts=get_posts('monthnum='.$month);
?>

You can visit the homepage if you want, but I must warn you for strong material: http://www.gumpalalla.se

First click “<” to go back, and then compare this the month archive, press “September” and try “<” there..

Thank you!