Here it is. It looks like the important piece is the "[stock]" part.
Code:
<!--START: product_availability-->
<tr>
<td class="price-info" width="45%"><b>[product_Header-availability]</b></td>
<td align="right" class="price-info"><div id="availability"> [stock]</div></td></tr>
<!--START: waitinglist-->
<tr><td height="2" colspan="2"></td></tr>
<tr>
<td class="item" align="left" colspan="2"><input type="button" value="Put me on the Waiting List" class="btn" onClick="javascript:window.open('notify.asp?catalogid=[catalogid]','popup','height=320,width=420,location=no,' + 'scrollbars=no,menubars=no,toolbars=no,resizable=yes');" /></td>
</tr>
<tr><td height="2" colspan="2"></td></tr>
<!--END: waitinglist-->
<!--END: product_availability-->