<div id="pagelink">
  <?php
$partlar= get_post_meta($post->ID,'part',true);
$part = explode('<!-part->',$partlar);
$top= count($part);
$part_separator=($_SERVER['REQUEST_URI']);
$part_separator=explode('.html/',$part_separator);
$ps= $part_separator[1];
if($ps == '') $ps=1;
for($i=1; $i<=$top; ++$i){ if($i == $ps){ echo '<span class="part-active">Part '.$i.'</span>'; }
else { echo '<a href="'.get_permalink().($i==1 ? '' : '/'.$i).'">Part '.$i.'</a>'; }
 ?>
  <?php } ?>
</div>
<div class="clear"></div>
<div class="player">
  <?php
      $playergoster = $part[($ps-1)];
              $playergoster=preg_replace('#width="(.*?)"#s','width="99%"',$playergoster);
              $playergoster=preg_replace('#height="(.*?)"#s','height="385px"',$playergoster);
              echo $playergoster;
  ?>
</div>

Birde bu şekilde denermisin ? Ayretende bunları part diye özel alan oluşturup oraya embed kodu <!-part-> embed kodu <!-part-> bu şekilde eklemen gerekir.