No matter what I tried, I kept coming up with errors on the Flickr Badge. Here is the final code that I used that is XHTML compliant.

• I added another <td>around the javascriptas well as moved the class styling to the style.css
• I changed all of the & to &amp;

<!-- Start of Flickr Badge -->

<table id="flickr_badge_uber_wrapper" cellpadding="0" cellspacing="10" border="0">
<tr>
<td><a href="http://www.flickr.com" id="flickr_www">www.<strong style="color:#3993ff">flick<span style="color:#ff1c92">r</span></strong>.com</a>

<table cellpadding="0" cellspacing="10" border="0" id="flickr_badge_wrapper">
<tr><td>
<script type="text/javascript" src="http://www.flickr.com/badge_code_v2.gne?count=6&amp;amp;amp;display=random&amp;amp;amp;size=s&amp;amp;amp;layout=h&amp;amp;amp;source=user&amp;amp;amp;user=60547841%40N00"></script></td></tr>

</table>

</td>
</tr>
</table>
<!-- End of Flickr Badge -->