retrieving blog comments

hi guys,... I can't retrieve blog comments on cake 1.3 when it used to work on cake 1.2 

can anyone help please,... 

I call comments ajax page with remoteFunction,... using jQuery: 

<script type="text/javascript">

<?php echo $ajax->remoteFunction(array('url' => array('controller' => 'blog_comments', 'action' => 'ajax_show/','blog_id:'.$blog['Blog']['id']), 'update' => 'comments')); ?>

</script>

which is similar to Prototype call (I used to have on cake 1.2,... and it's working on 1.2): 

    <script>

    new Ajax.Updater("comments", "<?php echo $html->url('/blog_comments/ajax_show/blog_id:' . $blog['Blog']['id']) ?>", { evalScripts:true, onComplete:function() { $("comments_loading").hide() } });

    </script>

And this is ajax_show function in blog_comments controller: 

  function ajax_show()

  {

    $this->layout = 'ajax';

$id = array_key_exists('blog_id', $this->params['pass']) ? $this->params['pass']['blog_id'] : null;

    if(!($blog = $this->Blog->findById($id)))

    {

      die();

    }

    else

    {

      $this->set('url_options', array('blog_id' => $id));

      $this->set('blog', $blog);

      $this->set('blog_comments', $this->paginate('BlogComment', array('BlogComment.blog_id' => $blog['Blog']['id'] )));

      $this->set('offset', ($this->params['paging']['BlogComment']['page'] - 1) * $this->paginate['limit'] + 1);

debug($blog);

debug($blog_comments);

 

    }

  }

thanks in advance, 

chris

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