Ubercart does not reduce inventory if you do add to cart

I'm using Drupal 6 with Ubercart. I also have among which the modules ajax cart and
Multi stock.

What I fail is that the stock will be adjusted as you add it to the cart, the inventory is only updated when you do checkout.

It would be nicer to have a picture shows green when it is in stock, and
red out of stock.

The following fields are:
Title
Image
selling
Stock
Buy it Now button

I use a view to including the following:

$view = new view;
$view->name = 'uc_products';
$view->description = 'List of products.';
$view->tag = 'Ubercart';
$view->view_php = '';
$view->base_table = 'node';
$view->is_cacheable = FALSE;
$view->api_version = 2;
$view->disabled = FALSE; /* Edit this to true to make a default view disabled initially */
$handler = $view->new_display('default', 'Defaults', 'default');
$handler->override_option('fields', array(
  'title' => array(
    'label' => 'Title',
    'link_to_node' => 1,
    'exclude' => 0,
    'id' => 'title',
    'table' => 'node',
    'field' => 'title',
    'relationship' => 'none',
  ),
  'field_image_cache_fid' => array(
    'label' => '',
    'alter' => array(
      'alter_text' => 0,
      'text' => '',
      'make_link' => 0,
      'path' => '',
      'link_class' => '',
      'alt' => '',
      'prefix' => '',
      'suffix' => '',
      'target' => '',
      'help' => '',
      'trim' => 0,
      'max_length' => '',
      'word_boundary' => 1,
      'ellipsis' => 1,
      'html' => 0,
      'strip_tags' => 0,
    ),
    'empty' => '',
    'hide_empty' => 0,
    'empty_zero' => 0,
    'link_to_node' => 1,
    'label_type' => 'none',
    'format' => 'product_list_linked',
    'multiple' => array(
      'group' => 1,
      'multiple_number' => '1',
      'multiple_from' => '0',
      'multiple_reversed' => 0,
    ),
    'exclude' => 0,
    'id' => 'field_image_cache_fid',
    'table' => 'node_data_field_image_cache',
    'field' => 'field_image_cache_fid',
    'relationship' => 'none',
    'override' => array(
      'button' => 'Override',
    ),
  ),
  'sell_price' => array(
    'label' => 'Sell price',
    'exclude' => 0,
    'id' => 'sell_price',
    'table' => 'uc_products',
    'field' => 'sell_price',
    'relationship' => 'none',
  ),
  'threshold' => array(
    'label' => 'Stock level',
    'alter' => array(
      'alter_text' => 0,
      'text' => '',
      'make_link' => 0,
      'path' => '',
      'link_class' => '',
      'alt' => '',
      'prefix' => '',
      'suffix' => '',
      'target' => '',
      'help' => '',
      'trim' => 0,
      'max_length' => '',
      'word_boundary' => 1,
      'ellipsis' => 1,
      'html' => 0,
      'strip_tags' => 0,
    ),
    'empty' => 'out of stock',
    'hide_empty' => 0,
    'empty_zero' => 1,
    'set_precision' => FALSE,
    'precision' => 0,
    'decimal' => '.',
    'separator' => ',',
    'prefix' => '',
    'suffix' => '',
    'exclude' => 0,
    'id' => 'threshold',
    'table' => 'uc_product_stock',
    'field' => 'threshold',
    'relationship' => 'none',
  ),
  'buyitnowbutton' => array(
    'label' => '',
    'alter' => array(
      'alter_text' => 0,
      'text' => '',
      'make_link' => 0,
      'path' => '',
      'link_class' => '',
      'alt' => '',
      'prefix' => '',
      'suffix' => '',
      'target' => '',
      'help' => '',
      'trim' => 0,
      'max_length' => '',
      'word_boundary' => 1,
      'ellipsis' => 1,
      'html' => 0,
      'strip_tags' => 0,
    ),
    'empty' => '',
    'hide_empty' => 0,
    'empty_zero' => 0,
    'exclude' => 0,
    'id' => 'buyitnowbutton',
    'table' => 'uc_products',
    'field' => 'buyitnowbutton',
    'relationship' => 'none',
  ),
));
$handler->override_option('filters', array(
  'status' => array(
    'operator' => '=',
    'value' => 1,
    'group' => '0',
    'exposed' => FALSE,
    'expose' => array(
      'operator' => FALSE,
      'label' => '',
    ),
    'id' => 'status',
    'table' => 'node',
    'field' => 'status',
    'relationship' => 'none',
  ),
  'is_product' => array(
    'operator' => '=',
    'value' => 1,
    'group' => '0',
    'exposed' => FALSE,
    'expose' => array(
      'operator' => FALSE,
      'label' => '',
    ),
    'id' => 'is_product',
    'table' => 'uc_products',
    'field' => 'is_product',
    'relationship' => 'none',
  ),
  'language' => array(
    'operator' => 'in',
    'value' => array(
      '***CURRENT_LANGUAGE***' => '***CURRENT_LANGUAGE***',
    ),
    'group' => '0',
    'exposed' => FALSE,
    'expose' => array(
      'operator' => FALSE,
      'label' => '',
    ),
    'id' => 'language',
    'table' => 'node',
    'field' => 'language',
    'relationship' => 'none',
  ),
));
$handler->override_option('access', array(
  'type' => 'none',
  'role' => array(),
  'perm' => '',
));
$handler->override_option('cache', array(
  'type' => 'none',
));
$handler->override_option('title', 'Products');
$handler->override_option('use_ajax', TRUE);
$handler->override_option('use_pager', '1');
$handler->override_option('style_plugin', 'grid');
$handler->override_option('style_options', array(
  'grouping' => '',
  'columns' => '2',
  'alignment' => 'horizontal',
  'fill_single_line' => 1,
));
$handler = $view->new_display('page', 'Page', 'page_1');
$handler->override_option('path', 'products');
$handler->override_option('menu', array(
  'type' => 'none',
  'title' => '',
  'description' => '',
  'weight' => 0,
  'name' => 'navigation',
));
$handler->override_option('tab_options', array(
  'type' => 'none',
  'title' => '',
  'description' => '',
  'weight' => 0,
  'name' => 'navigation',
));