Usage is simple, just follow the install and you got an working application.
You can also redefine news templates.
Ordinary news uses following templates:
news/newsitem.html
common template, wich included in news lists
news/newsitem_archive.html
template for django.views.generic.date_based.archive_index view
news/newsitem_archive_year.html
template for django.views.generic.date_based.archive_year view
news/newsitem_archive_month.html
template for django.views.generic.date_based.archive_month view
news/newsitem_archive_day.html
template for django.views.generic.date_based.archive_day view
news/newsitem_detail.html
template for django.views.generic.list_detail.object_detail view
As you can see, application uses django generic views for context lookup take a look into django documentation