diff --git a/djangorestframework/modelresource.py b/djangorestframework/modelresource.py
index 0123e77af..0b06dacb7 100644
--- a/djangorestframework/modelresource.py
+++ b/djangorestframework/modelresource.py
@@ -1,6 +1,7 @@
 from django.forms import ModelForm
-from django.db.models.query import QuerySet
 from django.db.models import Model
+from django.db.models.query import QuerySet
+from django.db.models.fields.related import RelatedField
 
 from djangorestframework.response import Response, ResponseException
 from djangorestframework.resource import Resource
@@ -340,6 +341,13 @@ class ModelResource(Resource, ModelFormValidatorMixin):
 
     def post(self, request, auth, content, *args, **kwargs):
         # TODO: test creation on a non-existing resource url
+        
+        # translated related_field into related_field_id
+        for related_name in [field.name for field in self.model._meta.fields if isinstance(field, RelatedField)]:
+            if kwargs.has_key(related_name):
+                kwargs[related_name + '_id'] = kwargs[related_name]
+                del kwargs[related_name]
+
         all_kw_args = dict(content.items() + kwargs.items())
         if args:
             instance = self.model(pk=args[-1], **all_kw_args)
@@ -373,6 +381,7 @@ class ModelResource(Resource, ModelFormValidatorMixin):
             else:
                 # Otherwise assume the kwargs uniquely identify the model
                 instance = self.model.objects.get(**kwargs)
+
             for (key, val) in content.items():
                 setattr(instance, key, val)
         except self.model.DoesNotExist:
@@ -404,7 +413,7 @@ class RootModelResource(ModelResource):
 
     def get(self, request, auth, *args, **kwargs):
         queryset = self.queryset if self.queryset else self.model.objects.all()
-        return queryset
+        return queryset.filter(**kwargs)
 
 
 class QueryModelResource(ModelResource):
@@ -418,5 +427,5 @@ class QueryModelResource(ModelResource):
 
     def get(self, request, auth, *args, **kwargs):
         queryset = self.queryset if self.queryset else self.model.objects.all()
-        return queryset
+        return queryset.filer(**kwargs)
 
diff --git a/examples/blogpost/models.py b/examples/blogpost/models.py
index c85ca7882..ba7810dc6 100644
--- a/examples/blogpost/models.py
+++ b/examples/blogpost/models.py
@@ -30,7 +30,7 @@ class BlogPost(models.Model):
     @models.permalink
     def comments_url(self):
         """Link to a resource which lists all comments for this blog post."""
-        return ('comments', (), {'blogpost_id': self.key})
+        return ('comments', (), {'blogpost': self.key})
 
     def __unicode__(self):
         return self.title
diff --git a/examples/blogpost/urls.py b/examples/blogpost/urls.py
index b2df96a17..1306b0d7d 100644
--- a/examples/blogpost/urls.py
+++ b/examples/blogpost/urls.py
@@ -4,6 +4,6 @@ from blogpost.views import BlogPosts, BlogPostInstance, Comments, CommentInstanc
 urlpatterns = patterns('',
     url(r'^$', BlogPosts.as_view(), name='blog-posts'),
     url(r'^(?P<key>[^/]+)/$', BlogPostInstance.as_view(), name='blog-post'),
-    url(r'^(?P<blogpost_id>[^/]+)/comments/$', Comments.as_view(), name='comments'),
+    url(r'^(?P<blogpost>[^/]+)/comments/$', Comments.as_view(), name='comments'),
     url(r'^(?P<blogpost>[^/]+)/comments/(?P<id>[^/]+)/$', CommentInstance.as_view(), name='comment'),
 )