WordPress meta issues

gistfile1.aw

// Custom meta boxes for the homepage signs
add_action( 'add_meta_boxes', 'r6_add_sign_box' );    // Create meta box action
add_action( 'save_post', 'r6_save_postdata' );        // Save data for meta box

function r6_add_sign_box()
{
  add_meta_box(
    'r6_sign_meta',
    'Homepage Signs',
    'r6_draw_sign_box',
    'page'
  );
}

function r6_draw_sign_box( $post )
{
  // Output nonce
  wp_nonce_field();
  
  // Set number of available signs
  $signCount = 10;
  
  // Iterate
  for( $i = 1; $i <= $signCount; $i++ )
  {
    echo '<h4>Sign ' . $i . '</h4>';
    echo '<label for="sign' . $i . 'title">Title: </label><input type="text" name="sign' . $i . 'title" /><br />';
    echo '<label for="sign' . $i . 'text">Text: </label><input type="text" name="sign' . $i . 'text" /><br />';
    echo '<label for="sign' . $i . 'link">Link: </label><input type="text" name="sign' . $i . 'link " /><br />';
    echo '<label for="sign' . $i . 'image">Image: </label><input id="sign' . $i . 'image" type="text" size="36" name="sign' . $i . 'image" value="" />';
    echo '<input id="sign' . $i . 'image_button" type="button" value="Upload Image" /> (should be 117x60)';
    echo '<script type="text/javascript">
      jQuery( document ).ready( function(){
        jQuery( "#sign' . $i .'image_button" ).click( function(){
          formfield = jQuery( "#sign' . $i .'image" ).attr( "name" );
          tb_show( "", "media-upload.php?type=image&TB_iframe=true" );
          return false;
        });
        
        window.send_to_editor = function( html ){
          imgurl = jQuery( "img", html ).attr( "src" );
          jQuery( "#" + formfield ).val( imgurl );
          tb_remove();
        };
      });
    </script>';
  }
  
  return;
}

function r6_save_postdata( $post_id )
{
  // Fail if this is an autosave
  if( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE )
    return;
    
  // Check for nonce
  if( !wp_verify_nonce( $_POST['_wpnonce'] ) )
    return;
    
  print_r( $_POST );
}