Nichtschwimmer

found a workin’ solution for me 🙂

<!-- Schlagzeilen -->
<div id="schlagzeilen-cat">         

<?php
	$temp = $wp_query;
	$wp_query= null;
	$wp_query = new WP_Query();
	$wp_query->query('post_type=os_schlagzeilen&post_status=publish&showposts=5'.'&paged='.$paged);
?>
<?php while ($wp_query->have_posts()) : $wp_query->the_post(); ?>

			<div class="schlagzeile">
				<span class="date"><?php echo get_the_date('d.m.Y'); ?></span>
				<h3 class="title-schlagzeile"><a href="<?php the_permalink(); ?>" title="<?php printf( esc_attr__( 'Permalink to %s', 'twentyten' ), the_title_attribute( 'echo=0' ) ); ?>" rel="bookmark"><?php the_title(); ?></a></h3>
				<?php echo schlagzeile_excerpt(); ?>
			</div>

<?php endwhile; // End the loop. Whew. ?>

<div class="navigation">
	<div class="alignleft"><?php next_posts_link('&laquo; &auml;ltere Artikel') ?></div>
 	<div class="alignright"><?php previous_posts_link('neuere Artikel &raquo;') ?></div>
</div>

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

</div>

sorry, something went wrong including the template code, don’t know why.. okay here another try


<?php
/**
* Template Name: Schlagzeilen/Sammlung
*
*/

get_header(); ?>

<div id="container">
<div id="content" role="main">

<h1 class="site-title">Aktuelle Schlagzeilen</h1>

<div class="breadcrumbs">
<?php
if(function_exists('bcn_display'))
{
bcn_display();
}
?>
</div>

<!-- Schlagzeilen -->
<div id="schlagzeilen-cat">

<?php
$schlagzeilen = new WP_Query(array('post_type' => 'os_schlagzeilen', 'posts_per_page' => '5'));
while ($schlagzeilen->have_posts()) : $schlagzeilen->the_post();
?>

<div class="schlagzeile">
<span class="date"><?php echo get_the_date('d.m.Y'); ?></span>
<h3 class="title-schlagzeile">" title="<?php printf( esc_attr__( 'Permalink to %s', 'twentyten' ), the_title_attribute( 'echo=0' ) ); ?>" rel="bookmark"><?php the_title(); ?></h3>
<?php echo schlagzeile_excerpt(); ?>
</div>

<?php endwhile; wp_reset_query(); ?>
</div>

<?php /* Display navigation to next/previous pages when applicable */ ?>
<?php if ( $schlagzeilen->max_num_pages > 1 ) : ?>
<div id="nav-below" class="navigation">
<div class="nav-previous"><?php next_posts_link( __( '<span class="meta-nav">←</span> Older posts', 'twentyten' ) ); ?></div>
<div class="nav-next"><?php previous_posts_link( __( 'Newer posts <span class="meta-nav">→</span>', 'twentyten' ) ); ?></div>
</div><!-- #nav-below -->
<?php endif; ?>

<!-- // Schlagzeilen -->

</div><!-- #content -->
</div><!-- #container -->

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