template.php

<?php
if(get_page_slug(false) == 'index') {
    $catalog->renderSection('FrontendItemList', array('routeid' => 25));
    echo $catalog->content;
}

echo $catalog->pagination;

$catalog->renderSection('FrontendCategoryList');

echo $catalog->content;

$catalog->renderSection('FrontendBreadCrumbs');
echo $catalog->breadcrumbs;

$catalog->renderSection('FrontendSearchResultContent');
echo $catalog->content;

$catalog->renderSection('FrontendSearchForm');
echo $catalog->searchform
    
$catalog->itemRow = '<div class="your-class"><h3>[[name]]</h3>...</div>';

$catalog->renderSection('FrontendItemList', array('routeid' => 25));

echo $catalog->content;