To display the post views you should be able to do something like this in getPostsWidgetItems :
Originally Posted by skorpyo
(copied straight from the post views plugin source)
$views = $h->post->vars['post_row']->post_views;
print '<li>Views ' . $views . '</li>';
For showing the post date you can use the time difference function. Something like :
Both of these are un-tested, you might need to change the $h->post bits to use $item.
echo time_difference(unixtimestamp($h->post->date), $h->lang);