Hello,
For add other languages to Vehicle manager - you need read below article:
ordasoft.com/Vehicle-Manager-Documentati...vehicle-manager.html
For add other languages to Vehicle manager - from ours languages pack, you need download languages from us
ordasoft.com/Download/Joomla1.5-extensio...s/View-category.html - and uzip they to folder:
{yours site}/components/com_vehiclemanager/language/
Thanks,
Ordasoft team