Woocommerce is a free plugin, so you can easily update it if needed in your Plugins section in your WordPress Dashboard. Also, all the questions regarding using Woocommerce functionality are covered in Woocommerce Documentation, which is very detailed.
In case your product images look distorted see the following instruction. Please proceed to Woocommerce > Settings > Catalog and scroll down to image settings. If you want your Woocommerce images look like on our demo preview, please set the following parameters as shown below (example taken from Industrial demo, you can find the sizes for your theme in How-To > WooCommerce section):