Yes, post your question on our forum so developer team can help to indicate where to update or change the languages to suite your need. Magento support international languages, please find your languages packages for Magento (http://www.magentocommerce.com/translations )
The download link always is automatically sent to your payment email within 5 minutes after the payment is done. Please check your inbox, open your confirmation email and there is your own product download link. Please check the Order Confirmation Email, there is download link inside. You can also use your download code to download on our website at this link. Each single purchase product has its own code, and you have to copy the right code to download your product.
Yes, within 6 months of your single purchase, if we release and update the extension or template, we will include into the product download package on our download server, so you can download with the same download links in your confirmation email.