Ich denke so sollte es gehen (ungetestet):
PHP
<?php
/**
* The template for displaying Category Archive pages.
*
* @package WordPress
* @subpackage Twenty_Eleven
* @since Twenty Eleven 1.0
*/
get_header(); ?>
<section id="primary">
<div id="content" role="main">
<?php if ( have_posts() ) : ?>
<header class="page-header">
<h1 class="page-title"><?php
printf( __( 'Category Archives: %s', 'twentyeleven' ), '<span>' . single_cat_title( '', false ) . '</span>' );
?></h1>
<?php
$category_description = category_description();
if ( ! empty( $category_description ) )
echo apply_filters( 'category_archive_meta', '<div class="category-archive-meta">' . $category_description . '</div>' );
?>
</header>
<?php twentyeleven_content_nav( 'nav-above' ); ?>
<?php /* Start the Loop */ ?>
<?php while ( have_posts() ) : the_post(); ?>
[COLOR="Red"]<h1 class="entry-title"><a href="<?php the_permalink(); ?>" title="<?php printf( esc_attr__( 'Permalink to %s', 'twentyeleven' ), the_title_attribute( 'echo=0' ) ); ?>" rel="bookmark"><?php the_title(); ?></a></h1>[/COLOR]
<?php endwhile; ?>
<?php twentyeleven_content_nav( 'nav-below' ); ?>
<?php else : ?>
<article id="post-0" class="post no-results not-found">
<header class="entry-header">
<h1 class="entry-title"><?php _e( 'Nothing Found', 'twentyeleven' ); ?></h1>
</header><!-- .entry-header -->
<div class="entry-content">
<p><?php _e( 'Apologies, but no results were found for the requested archive. Perhaps searching will help find a related post.', 'twentyeleven' ); ?></p>
<?php get_search_form(); ?>
</div><!-- .entry-content -->
</article><!-- #post-0 -->
<?php endif; ?>
</div><!-- #content -->
</section><!-- #primary -->
<?php get_sidebar(); ?>
<?php get_footer(); ?>
