ez.no templates are not public available. For start I suggest to take a while and read this tutorial: http://ez.no/products/ez_publish/documentation/building_an_ez_publish_site
Book "Learning eZ publish 3" is useful as well http://ez.no/products/books/ez_publish_book
If you want learn more about eZ publish development, look at documentation for developers: http://ez.no/products/ez_publish/documentation/development