In page content:
<p>{{block type="catalog/product_list" name="home.catalog.product.list" alias="products_homepage" template="catalog/product/list.phtml" columnCount="4"}}</p>
Layout update xml
<reference name="left">
<block type="catalog/navigation" name="catalog.left_category_nav" after="currency" template="catalog/navigation/category_nav.phtml"/>
<block type="catalog/product_popular" template="catalog/product/popular_left.phtml"/>
</reference>
