Thread

{exp:channel:entries channel="gallery"}

<div class="gallery_clear"> 
  
    <a href="http://{gallery-image}%22name=%22{category_name}%22&gt&lt/a&gt" title="{title}">__ {gallery-image}__ {path}_small/{filename}.{extension} __ {/gallery-image}__ </a>

</div>

{/exp:channel:entries}

{exp:channel:category_archive channel="gallery" style="linear"}
{categories}

<div class="gallery_clear"> 
<h2>{category_name}</h2>

<p></ul>                                    <br />
{exp:channel:entries channel="gallery" category="{category_id}"}<br />
<li> <br />
<a href="http://{gallery-image}rel=lightboxam">" title="{title}"]{gallery-image}{path}_small/{filename}.{extension}{/gallery-image}</a><br />
</li><br />
{/exp:channel:entries}<br />
</ul><br />
</div><br />
{/categories}</p>

<p>{/exp:channel:category_archive}