Metabox Slider Implementation

Hi, I’m using the OT metaboxes for my custom post-type…

this is the code of my metaboxes (just 2)

$my_meta_box = array(
    'id'          => 'port_meta_box',
    'title'       => 'Otras Opciones',
    'desc'        => '',
    'pages'       => array( 'portfolio' ),
    'context'     => 'normal',
    'priority'    => 'high',
    'fields'      => array(
     array(
        'id'          => 'port_imgs',
        'label'       => 'Imágenes',
        'desc'        => 'Imágenes del Proyecto, agregue las imágenes para el slideshow de su proyecto',
        'std'         => '',
        'type'        => 'slider',
        'rows'        => '',
        'post_type'   => '',
        'taxonomy'    => '',
        'min_max_step'=> '',
        'class'       => ''
      ),
      array(
        'id'          => 'port_url',
        'label'       => 'Link del Proyecto',
        'desc'        => 'Agregue un link para su proyecto. (incluya http:// )',
        'std'         => '',
        'type'        => 'text',
        'rows'        => '',
        'post_type'   => '',
        'taxonomy'    => '',
        'min_max_step'=> '',
        'class'       => ''
      )
  	)
  );

ok for the text box i only render this in my theme by this code:
<?php $meta = get_post_meta( get_the_ID(), 'port_url', TRUE ); echo $meta; ?>

It’s fine for me but… Now i have a problem rendering the Slider… this is an exaple code of implementation…

<?php
         		if ( function_exists( 'ot_get_option' ) ) {
				  /* get the slider array */
				  $slides = ot_get_option( 'port_imgs', array() );

				  if ( ! empty( $slides ) ) {
				    foreach( $slides as $slide ) {
				      echo '
				      <li>
				        <img src="' . $slide['image'] . '" alt="' . $slide['title'] . '" />
				      </li>';
				    }
				  }

				}
		?>

Please help, it’s a fantastic way for implement custom boxes for the theme and for the posts but it’s a little confused for me the implementation of the metaboxes.

Tnks a lot.

Regards

http://wordpress.org/plugins/option-tree/