Ok, figured it out - almost tried to use javascript, but that was going overboard. Find where you want the quick reply button and put this snippet of code in there. I don't know why I didn't use this before. I was having a bald moment.
Code:
<td><div class="imagebutton" id="{$editorid}_cmd_wrap0_quoteit"><img src="http://www.yoursite.com/forums/images/editor/quoteit.png" alt="Wrap QUOTEIT tags around selected text" width="16" height="16" border="0" /></div></td>