I'll try to put it into easy steps:
1. Create a copy of the theme's index.php file and name it woocommerce.php
2. Find the following code in the new woocommerce.php file:
<?php if ($s5_show_component == "yes") { ?>
<?php s5_component_call(); ?>
<div style="clear:both;height:0px"></div>
<?php } ?>
3. Replace that code with the following:
<div class="woocommerce">
<?php woocommerce_content(); ?>
</div>
<div style="clear:both;height:0px"></div>
That should be all you need to do; multiple people have used that method successfully now, so it should work.