Put this after </body>

<div id="02" class="popup_block">

<center>
<iframe frameborder="0" scrolling="yes" width="100%" height="200" src="http://www.tumblr.com/ask_form/{Name}.tumblr.com" style="background-color:transparent; overflow:hidden;" id="ask_form">
</center></div></div></div></div></div></div></div></div></div></div></div>