Edit my index.php

Hello , I would change my index.php with the functions of your plugin , that show in chronological order the articles around the network . Can be done? Thank you.

<div class="block archive">

<h3>
<?php _e('', 'Avenue'); ?>
<span class="arrows"></span>
</h3>

<?php if (have_posts()) : while (have_posts()) : the_post(); ?>
<div id="post-<?php the_ID(); ?>" <?php post_class('block-item-big'); ?>>
<?php
if(has_post_format('video') || has_post_format('audio') || has_post_format('gallery')) {
$icon = '<span class="' . get_post_format($post->ID) . '-icon"></span>';
} else {
$icon = '';
}
?>
<?php if(has_post_thumbnail()): ?>
<?php $image = wp_get_attachment_image_src(get_post_thumbnail_id($post->ID), 'widget-image'); ?>
<div class="block-image"><a href='<?php the_permalink(); ?>' title='<?php the_title(); ?>'><img src="<?php echo $image[0]; ?>" alt="<?php the_title(); ?>" width='290' height='160' /></a><?php echo $icon; ?></div>
<?php else: ?>
<div class="block-image"><a href='<?php the_permalink(); ?>' title='<?php the_title(); ?>'><img src="<?php bloginfo('template_directory'); ?>/timthumb.php?src=<?php bloginfo('template_directory'); ?>/images/thumbnail.png&w=290&h=160" alt="<?php the_title(); ?>" width='290' height='160' /></a><?php echo $icon; ?></div>
<?php endif; ?>
<!-- leggi la categoria -->
<div class="category-home">
<?php
foreach((get_the_category()) as $category) {

echo '<a href="' . get_category_link( $category->term_id ) . '" title="' . sprintf( __( "Tutti gli articoli in %s" ), $category->name ) . '" ' . '>' . $category->name.'</a> ';

}
?>
</div>
<!-- end lettura categoria -->
<h2><a href='<?php the_permalink(); ?>' title='<?php the_title(); ?>'><?php the_title(); ?></a></h2>
<span class="block-meta">
<!-- <span class="heading-author"><?php //the_author(); ?></span> -->
<span class="heading-date"><?php the_time('F j, Y'); ?></span>
<span class="heading-comments"><?php comments_popup_link('0','1','%'); ?></span>
</span>
<!-- NO read more -->
<p><?php echo string_limit_words(get_the_excerpt(), 34); ?></p><!--<a href='<?php //the_permalink(); ?>' title='<?php //the_title(); ?>' class="readmore"><?php //_e('Read More', 'Avenue'); ?> <span class="block-arrows">?</span></a> -->
<!-- end NO read more -->						</div>
<?php endwhile; endif; ?>

<?php kriesi_pagination($pages = '', $range = 2); ?>
</div>

<div class='block full' style='padding-top: 20px;'>
<?php if (!function_exists('dynamic_sidebar') || !dynamic_sidebar('Homepage (Blog Style)')): ?>
<?php endif; ?>
</div>