echo '
<tr>
<td class="windowbg2" valign="middle" align="center" width="5%">
<img src="', $settings['images_url'], '/topic/', $topic['class'], '.gif" alt="" />
</td>
<td class="windowbg2" valign="middle" align="center" width="4%">
<img src="', $topic['first_post']['icon_url'], '" alt="" />
</td>
you have to close this echo with ';
and after if start new:
So it becomes like this:
echo '
<tr>
<td class="windowbg2" valign="middle" align="center" width="5%">
<img src="', $settings['images_url'], '/topic/', $topic['class'], '.gif" alt="" />
</td>
<td class="windowbg2" valign="middle" align="center" width="4%">
<img src="', $topic['first_post']['icon_url'], '" alt="" />
</td>';
if ($context['show_thumbnails'])
{
echo '
<td class="windowbg2" valign="middle" align="center">';
if (isset($topic['image'][0]['id']))
{
$image = &$topic['image'][0];
echo '
<a href="', $image['link'], '"><img src="', $image['url'], '" width="', $image['width'], '" height="', $image['height'], '" alt="" /></a>';
}
echo '
</td>';
}
echo '
<td class="windowbg' , !empty($settings['seperate_sticky_lock']) && $topic['is_sticky'] ? '3' : '' , '" valign="middle" ', (!empty($topic['quick_mod']['remove']) ? 'id="topic_' . $topic['first_post']['id'] . '" onmouseout="mouse_on_div = 0;" onmouseover="mouse_on_div = 1;" ondblclick="modify_topic(\'' . $topic['id'] . '\', \'' . $topic['first_post']['id'] . '\', \'' . $context['session_id'] . '\');"' : ''), '>';