in default_layout.css :

#theHeader {
  display: none;
}

in default_layout.css :

FORM#quickconnect {
  display: none;
}

in default_layout.css :

BODY {
    margin: 5px;
}

To set both thumbnails under the title bar and left and write of the actual picture, try in default_layout.css :

#the_page {
  position: relative;
}
* html #the_page { /* IE only */
  position: absolute; 
  left: 0;
}
#thumbPrev {
  position: absolute;
  left: 5px;
  top: 200px;
  float: none;
}
#thumbNext {
  position: absolute;
  right: 5px;
  top: 200px;
  float: none;
}

Seems to be OK with Geko, KHTML, Opera, and IE (with a special rule “* html #the_page”) We don't like this layout very mutch because when the picture is wide, the thumbnails overlap and it's not pretty.

All picture legend information have the same generation code. If you need to change some of those, you can edit picture.php. For Near line 671, find this :

// author
if (!empty($picture['current']['author']))
{
  $infos['INFO_AUTHOR'] =
    '<a href="'.
    add_session_id(
      PHPWG_ROOT_PATH.'category.php?cat=search'.
      '&amp;search=author:'.$picture['current']['author']
      ).
    '">'.$picture['current']['author'].'</a>';
}
else
{
  $infos['INFO_AUTHOR'] = l10n('N/A');
}

As you want, you can add a class (class=“author” or add style=“color: #009900; font-weight: bold;” This is true for all IPTC fields.

in include/category_default.inc.php, (line 136) replace

$template->assign_block_vars(
  'thumbnails.line.thumbnail.nb_comments',
  array('NB_COMMENTS'=>$row['nb_comments']));

by

if ($row['nb_comments'] > 0)
{
$template->assign_block_vars(
  'thumbnails.line.thumbnail.nb_comments',
  array('NB_COMMENTS'=>$row['nb_comments']));
}