$array_cat_directories = array();
 
$query = '
SELECT id,path,file,date_available
       ,tn_ext,name,filesize,storage_category_id,average_rate
  FROM '.IMAGES_TABLE.' AS i
    INNER JOIN '.IMAGE_CATEGORY_TABLE.' AS ic ON id=ic.image_id
  '.$page['where'].'
  '.$conf['order_by'].'
  LIMIT '.$page['start'].','.$page['nb_image_page'].'
;';
//echo '<pre>'.$query.'</pre>';
$result = pwg_query($query);

// template thumbnail initialization
if ( mysql_num_rows($result) > 0 )
{
  $template->assign_block_vars('thumbnails', array());
  // first line
  $template->assign_block_vars('thumbnails.line', array());
  // current row displayed
  $row_number = 0;
}

while ($row = mysql_fetch_array($result))
{
  $thumbnail_url = get_thumbnail_src($row['path'], @$row['tn_ext']);
 
  // message in title for the thumbnail
  $thumbnail_title = $row['file'];
  if (isset($row['filesize']))
  {
    $thumbnail_title .= ' : '.$row['filesize'].' KB';
  }
  // url link on picture.php page
  $url_link = PHPWG_ROOT_PATH.'picture.php?cat='.$page['cat'];
  $url_link.= '&amp;image_id='.$row['id'];
  if ($page['cat'] == 'search')
  {
    $url_link.= '&amp;search='.$_GET['search'];
  }
  else if ($page['cat'] == 'list')
  {
    $url_link.= '&amp;list='.$_GET['list'];
  }
   
  $template->assign_block_vars(
    'thumbnails.line.thumbnail',
    array(
      'IMAGE'              => $thumbnail_url,
      'IMAGE_ALT'          => $row['file'],
      'IMAGE_TITLE'        => $thumbnail_title,
      'IMAGE_TS'           => get_icon($row['date_available']),
     
      'U_IMG_LINK'         => add_session_id($url_link)
      )
    );

  if ($conf['show_thumbnail_caption'])
  {
    // name of the picture
    if (isset($row['name']) and $row['name'] != '')
    {
      $name = $row['name'];
    }
    else
    {
      $name = str_replace('_', ' ', get_filename_wo_extension($row['file']));
    }
    if ($page['cat'] == 'best_rated')
    {
      $name = '('.$row['average_rate'].') '.$name;
    }
   
    if ($page['cat'] == 'search')
    {
      $name = replace_search($name, $_GET['search']);
    }
 
    $template->assign_block_vars(
      'thumbnails.line.thumbnail.element_name',
      array(
        'NAME' => $name
        )
      );
  }
   
  if ($user['show_nb_comments']
      and is_numeric($page['cat'])
      and $page['cat_commentable'])
  {
    $query = '
SELECT COUNT(*) AS nb_comments
  FROM '.COMMENTS_TABLE.'
  WHERE image_id = '.$row['id'].'
    AND validated = \'true\'
;';
    $row = mysql_fetch_array(pwg_query($query));
    $template->assign_block_vars(
      'thumbnails.line.thumbnail.nb_comments',
      array('NB_COMMENTS'=>$row['nb_comments']));
  }

  // create a new line ?
  if (++$row_number == $user['nb_image_line'])
  {
    $template->assign_block_vars('thumbnails.line', array());
    $row_number = 0;
  }
}
?>

Ca c'est mon fichier category_default.inc

Ca marche pas donc.

Mais je sais pas comment ouvrir un bug... ;o)