Hi,
Adding new Language to Joomla and Virtuemart has absolutely nothing to do with our template. Therefore it is beyond our free-support. We don't provide free support or step-by-step instructions is something is not directly related to our template.
You need to configure language setup correctly, otherwise the result won't be as expected.
You should read some tutorial articles about it, and try several tests, spend some time on it.
It is very easy to handle. But it might be challenging for the first time. Once you understand the idea, you won't have any problem with it.
Read these tutorials and discussion (or use google.com to find more):
docs.virtuemart.net/documentation/User_Manual/Language_Installation.html
docs.virtuemart.net/tutorials/36-multilingual-store/99-multilanguage-setup.html
forum.virtuemart.net/index.php?topic=104901.0
Regards,
Support