It seems there is a problem with adding products from shops with woocommerce or wp e-commerce in the sitemap.
And so it's not possible to reach a indexing from google or bing (it seems). There should be a new line in sitemapindex.xml with /shop (I think) and also portfolio is missing.
How can I fix this problem. I really need a product-indexing for my shop http://shop.pronatur24.eu. I tried all I could in webtools with no effect.