function phptemplate_image_attach_body($node){
  theme_add_style(drupal_get_path('module', 'image_attach') .'/image_attach.css');

  $image = node_load($node->iid);
  
  $info = image_get_info(file_create_path($image->images['preview']));
  $output = '';
  $output .= '<div style="width: '. $info['width'] .'px" class="image-attach-body">';
  $output .= l(image_display($image, 'preview'), "node/$image->nid", array(), NULL, NULL, FALSE, TRUE);
  $output .= '</div>'."\n";
  $output .= $node->body;
  return $output;
}

This snippet is for use with image_attach, a small contributed module that uses image module to create nice thumbs in any node type. 
The template snippet makes the images show up larger in the body node, and instead of linking to itself, it links to the attached image node.

image_attach theme image in the node

image, drupal

PHP