myapp/models.py:
----------------

class Testimonial(models.Model):
    title = models.CharField(max_length=255)
    slug = models.SlugField(unique=True)
    teaser = models.CharField(max_length=255)
    body = PlaceholderField(blank=True, help_text="This is the testimonial text itself.")
    author = models.CharField(max_length=50)
    publish = models.BooleanField(default=True)

    def __unicode__(self):
        return self.title

    @models.permalink
    def get_absolute_url(self):
        return ('story', ['story', self.slug])


myapp/cms_app.py
----------------

class StoryApphook(CMSApp):
    name = "Testimonials"
    urls = ["myapp.urls"]

apphook_pool.register(StoryApphook)


myapp/urls.py
-------------

urlpatterns = patterns('myapp.views',
    url(r'^(story/(?P<story_slug>[\d\w\-\. ]+)/$', 'story_view', name='story'),
    ...
)


myapp/views.py
--------------
the usual.


myapp/admin.py
--------------

class TestimonialAdmin(PlaceholderAdmin):
    prepopulated_fields = {"slug": ("title",)}
admin.site.register(Testimonial, TestimonialAdmin)