\"oriented\" means aimed at a particular group, a specific interest or point of view.
Example:
The country\'s new government has a communist oriented approach to economy.
\"The new movie rental place is not for kids. It\'s all adult oriented\". (it means you can only rent adult movies).
orientated:
to be familiar with surroundings, find you way around:
\"Are you well orientated with the city? It\'s very big and you might need a few tips on how to get around\".
:)