I'm having problems with some of the shortcodes. When I put for example [shoppingcart] on a page, it doesn't display the shopping cart with checkout. Take a look here: http://slakteriet.ja-c.se/presentkort/
But I can use the shortcode for products [wpsc_products product_id='xx'] and the widget for the cart works. I have moved all the WPSC template files to my WP theme.
Please help me out.