How to install/update templates, modules, languages from the marketplace and update your Siberian to the last version.
To update modules, templates, languages you just have to process the same way you installed them, but with the updated archive.
You should be able to download the updates from your purchase history : https://www.siberiancms.com/checkout/purchase-history/
Please remember that if you bought the “One year support&update” license, then the updates are available during the first year, then you have to renew your license.