[Plugin: WP e-Commerce] Need something like Product Group in 3.7.5 for new version

I’m trying to make a small shop with 2 separate groups of products (jewelry and clothing). Categories of the group should be visible when you are on group page (link in main menu). In the old plugin version:

<?php wpsc_start_category_query (array ('category_group' => 1, 'show_thumbnails' => 1)); ?>

worked perfectly so I do not know why this was removed. Does anyone have an idea how this could be solved in another way?

http://wordpress.org/extend/plugins/wp-e-commerce/