/kboard/skin/thumbnail/list.php 이 리스트 레이아웃 입니다.

<td class="kboard-list-thumbnail"><?php if($content->thumbnail_file):?><img src="<?php echo kboard_resize($content->thumbnail_file, 120, 90)?>" style="max-width: 100px;" alt="<?php echo $content->thumbnail_name?>"><?php else:?><i class="icon-picture"></i><?php endif?></td>

위 코드에서 아래처럼 링크를 추가 해주세요.

<td class="kboard-list-thumbnail">
                        <a href="<?php echo $url->set('uid', $content->uid)->set('mod', 'document')->toString()?>"><?php echo $content->title?>
                        <?php if($content->thumbnail_file):?><img src="<?php echo kboard_resize($content->thumbnail_file, 120, 90)?>" style="max-width: 100px;" alt="<?php echo $content->thumbnail_name?>"><?php else:?><i class="icon-picture"></i><?php endif?>
                        </a>
</td>