Hi Mara
Possibly.. have you tried the module labeled 'language'? Labeling may differ on different language packs of Joomla.
If the folder exists but not the module you could try navigating to
Extensions -> Extensions Manager - > Discover -> Discover and see if the module is listed to install.
Failing that may I suggest placing a post on the Joomla fourms @
http://forum.joomla.org/
Ciarán