If your having problems updating the template via the Joomla updater a quick fix is to use the regular Joomla installer to install the latest package from downloads area:
Whats causing this problem? I know a manual update fixes it but kinda a PITA when your mobile and trying to work from your iPad 3
Unknown Archive type
Update path does not exist
JInstaller: :Install: Cannot find Joomla XML setup file
Unable to detect manifest file
Updating COM_INSTALLER_TYPE_TYPE_ was successful.