title: Djangothumbnails app issue
body: <p>I an using <a href="http://djangothumbnails.com/" rel="nofollow">this plugin to</a> generate thumbnails. But somhow I couldn't make it work. The models work well, as images can be uploaded from the admin interface, even thumbnails get generated. I uploaded an image named "myphoto.jpg". The view I have is this.</p>
  
  <pre><code>def mainpage(request,slug):
      page = get_object_or_404(MainPage, slug=slug)
      image = get_object_or_404(Image)
      return direct_to_template(request, 'flatpage.html',
          extra_context={
              'page':page,
              'image':image,
          })
  </code></pre>
  
  <p>I have defined the class in models as "Image". I had this in the template:
  <code>&lt;img src="{% image.photo.myphoto_125x125 %}"&gt;</code> But the template shows error. </p>
  
  <p>This is my model:</p>
  
  <pre><code>class Image(models.Model):
      title = models.CharField(max_length=100)
      photo = ImageWithThumbsField(upload_to='images/', sizes=((125,125),(200,200)))
      # second_photo = ImageWithThumbsField(upload_to='site_media/images')
  
      def __unicode__(self):
          return self.title
  </code></pre>
  
  <p>The second field, "second_photo" I have commented out as it created duplicate copy of the main image. Even I am looking for a way to create entry for actual unsized image in the first field itself. </p>