You can see this live at
http://gentworks.blueneon.ro/ - if you go to checkout, you will see the blank space where this html code is:
Code:
<li class="fields-group last">
<div class="field-container">
<div class="data-name">
<label for="additional_address_values_address_B_9">Address (line 3)</label>
</div>
<div class="data-value">
<input type="text" value="" size="32" id="additional_address_values_address_B_9" name="additional_values[address][b][9]">
</div>
</div>
</li>