Using Tag Selector on plugin's page

Hi,

I create a custom taxonomy and I’m struggling to make post_tags_meta_box to work on my custom edit page. I created a custom page for editing because there’s a lot of other things going on like google maps etc. and standard Edit Post wasn’t enough. I still have a post object through. I’d like to use the taxonomy term selector (which is great BTW ?? on mentioned page, but I can’t make it run.

I’m not sure what exacly is needed to insert and make it work on my own page. I tried:

wp_enqueue_script('post');
  require_once('./includes/meta-boxes.php');

  // here I'd like to display a city selector from the UTM plugin
  post_tags_meta_box($post, array('args' => array('taxonomy' => 'city')));

It produces some HTML code which look like the box, but no Javascript is binded to it. Can anyone advise?

thanks!