In single.php nur bei einer bestimmten Kategorie eine andere Darstellung

<?php /* How to display all other posts. */ ?>


    <?php else : ?>
        <div id="post-<?php the_ID(); ?>" <?php post_class(); ?>>
            <h2 class="entry-title"><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></h2>


            <div class="entry-meta">
                <?php twentyten_posted_on(); ?>
            </div><!-- .entry-meta -->


    <?php if ( is_archive() || is_search() ) : // Only display excerpts for archives and search. ?>
            <div class="entry-summary">
                <?php the_excerpt(); ?>
            </div><!-- .entry-summary -->
    <?php else : ?>
            <div class="entry-content">
                <?php the_content( __( 'Continue reading <span class="meta-nav">&rarr;</span>', 'twentyten' ) ); ?>
                <?php wp_link_pages( array( 'before' => '<div class="page-link">' . __( 'Pages:', 'twentyten' ), 'after' => '</div>' ) ); ?>
            </div><!-- .entry-content -->
    <?php endif; ?>


            <div class="entry-utility">
                <?php if ( count( get_the_category() ) ) : ?>
                    <span class="cat-links">
                        <!-- <?php printf( __( '<span class="%1$s">Posted in</span> %2$s', 'twentyten' ), 'entry-utility-prep entry-utility-prep-cat-links', get_the_category_list( ', ' ) ); ?>   -->
                    </span>
            <!--        <span class="meta-sep">|</span>  -->
                <?php endif; ?>
                <?php
                    $tags_list = get_the_tag_list( '', ', ' );
                    if ( $tags_list ):
                ?>    
                    <span class="tag-links">
                    <!--    <?php printf( __( '<span class="%1$s">Tagged</span> %2$s', 'twentyten' ), 'entry-utility-prep entry-utility-prep-tag-links', $tags_list ); ?>    -->
                    </span>
                    <span class="meta-sep">|</span>     
                <?php endif; ?>
                <span class="comments-link"><?php comments_popup_link( __( 'Leave a comment', 'twentyten' ), __( '1 Comment', 'twentyten' ), __( '% Comments', 'twentyten' ) ); ?></span>
                <?php edit_post_link( __( 'Edit', 'twentyten' ), '<span class="meta-sep">|</span> <span class="edit-link">', '</span>' ); ?>
            </div><!-- .entry-utility -->
        </div><!-- #post-## -->


        <?php comments_template( '', true ); ?>


    <?php endif; // This was the if statement that broke the loop into three parts based on categories. ?>

if ( ! function_exists( 'twentyten_posted_in' ) ) :
/**
 * Prints HTML with meta information for the current post (category, tags and permalink).
 *
 * @since Twenty Ten 1.0
 */
function twentyten_posted_in() {
    // Retrieves tag list of current post, separated by commas.
    $tag_list = get_the_tag_list( '', ', ' );
    if ( $tag_list ) {
        $posted_in = __( 'This entry was posted in %1$s and tagged %2$s. Bookmark the <a href="%3$s" title="Permalink to %4$s" rel="bookmark">permalink</a>.', 'twentyten' );
    } elseif ( is_object_in_taxonomy( get_post_type(), 'category' ) ) {
        $posted_in = __( 'This entry was posted in %1$s. Bookmark the <a href="%3$s" title="Permalink to %4$s" rel="bookmark">permalink</a>.', 'twentyten' );
    } else {
        $posted_in = __( 'Bookmark the <a href="%3$s" title="Permalink to %4$s" rel="bookmark">permalink</a>.', 'twentyten' );
    }
    // Prints the string, replacing the placeholders.
    printf(
        $posted_in,
        get_the_category_list( ', ' ),
        $tag_list,
        get_permalink(),
        the_title_attribute( 'echo=0' )
    );
}
endif;