Doesn't update {comments}.pid after move images to new album

Yes this is a problem, is there a fix for it? I've tried looking myself but can't work out where it gets set nor how I might set it!

thanks smzz. Code can be used, but also need to re-calculate the number of comments.

Index: photos.page.inc
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/photos/photos.page.inc,v
retrieving revision 1.1.2.23
diff -u -r1.1.2.23 photos.page.inc
--- photos.page.inc   8 Oct 2008 16:22:36 -0000   1.1.2.23
+++ photos.page.inc   30 Nov 2008 10:00:55 -0000
@@ -729,7 +729,8 @@
          '#default_value' => $img->pid,
          '#required' => TRUE,
         );
-         $form['photos'][$fid]['uid'] = array('#type' => 'hidden','#default_value' => $img->uid,);
+         $form['photos'][$fid]['uid'] = array('#type' => 'hidden', '#default_value' => $img->uid,);
+      $form['photos'][$fid]['oldpid'] = array('#type' => 'value', '#value' => $img->pid,);
       };
    }
    $form['allck'] = array('#value' =>'<a class="allck" href="javascript:void(0)">'.t('Select All').'</a> | <a class="allnone" href="javascript:void(0)">' .t('Deselect'). '</a>');
@@ -746,9 +747,17 @@
    foreach($form_state['values']['photos'] as $fid => $key) {
       if (!empty($key['del'])) {
          _photos_file_del($fid);
-         db_query('DELETE FROM {x_image} WHERE fid = %d',$fid);
+         db_query('DELETE FROM {x_image} WHERE fid = %d', $fid);
+      db_query('DELETE FROM {x_vote} WHERE fid = %d', $fid);
+      db_query('DELETE FROM {comments} WHERE cid IN (SELECT cid FROM {x_vote} WHERE fid = %d)', $fid);
+      _comment_update_node_statistics($key['pid']);
       }else{
          db_query("UPDATE {x_image} SET pid = %d, des = '%s', wid = %d WHERE fid = %d", $key['pid'],$key['des'], $key['wid'], $fid);
+      if ($key['pid'] != $key['oldpid']) {
+        db_query('UPDATE {comments} SET nid = %d WHERE cid IN (SELECT cid FROM {x_vote} WHERE fid = %d)', $key['pid'], $fid);
+        _comment_update_node_statistics($key['pid']);
+        _comment_update_node_statistics($key['oldpid']);
+      }
       }
    }
 }
@@ -797,8 +806,8 @@
    $output = '';
    if($con){
       $output = $t;
-   }else{
-   if (user_access('access comments')) {
+   }elseif(module_exists('comment')) {
+   if(user_access('access comments')) {
       $node->type = 'photos';
       $mode = _comment_get_display_setting('mode', $node);
       $order = _comment_get_display_setting('sort', $node);

I've implemented the changes you have suggested and it works fine, thank you very much firstly smzz and then eastcn.