Truck Django changes lots about unicode,so as feedjack.
Version 40# of  feedjack has some bug with truck django below.

1.ERROR : 'module' object has no attribute 'quote_name'
replace all "backend.quote_name" with "connection.ops.quote_name" in fjlib.py.

2.no-ascii tags error : UnicodeDecodeError at /tag/互联网络/
'ascii' codec can't decode byte 0xe4 in position 21: ordinal not in range(128)

  2.1 add a new line in fjlib.py below:
from django.utils.encoding import smart_unicode

  2.2 in fjlib.py  replace :
url = 'http://%s/%s' % (http_post.rstrip('/'), \
      path_info.lstrip('/'))
pagecachekey = '%s?%s' % (path_info, query_string)

with :
url = u'http://%s/%s' % (smart_unicode(http_post.rstrip('/')), smart_unicode(path_info.lstrip('/')))
pagecachekey = u'%s?%s' % (smart_unicode(path_info), smart_unicode(query_string))

2.3 replace "ctx.update(key)" with "ctx.update(key.encode('utf-8'))" in fjcache.py

That's all.patch is below.
##########################

Index: fjcache.py
===================================================================
--- fjcache.py    (revision 41)
+++ fjcache.py    (working copy)
@@ -22,7 +22,7 @@
     """ Returns the md5 hash of a string.
     """
     ctx = md5.new()
-    ctx.update(key)
+    ctx.update(key.encode('utf-8'))
     return ctx.hexdigest()
def getkey(stype, site_id=None, key=None):
Index: fjlib.py
===================================================================
--- fjlib.py    (revision 41)
+++ fjlib.py    (working copy)
@@ -11,6 +11,7 @@
from django.core.paginator import ObjectPaginator, InvalidPage
from django.db import backend
from django.http import Http404
+from django.utils.encoding import smart_unicode
from feedjack import models
from feedjack import fjcache
@@ -71,18 +72,18 @@
     tag_obj = None
     tags = models.Tag.objects.extra(\
       select={'post_id':'%s.%s' % (\
-        backend.quote_name('feedjack_post_tags'), \
-        backend.quote_name('post_id'))}, \
+        connection.ops.quote_name('feedjack_post_tags'), \
+        connection.ops.quote_name('post_id'))}, \
       tables=['feedjack_post_tags'], \
       where=[\
         '%s.%s=%s.%s' % (\
-          backend.quote_name('feedjack_tag'), \
-          backend.quote_name('id'), \
-          backend.quote_name('feedjack_post_tags'), \
-          backend.quote_name('tag_id')), \
+          connection.ops.quote_name('feedjack_tag'), \
+          connection.ops.quote_name('id'), \
+          connection.ops.quote_name('feedjack_post_tags'), \
+          connection.ops.quote_name('tag_id')), \
         '%s.%s IN (%s)' % (\
-          backend.quote_name('feedjack_post_tags'), \
-          backend.quote_name('post_id'), \
+          connection.ops.quote_name('feedjack_post_tags'), \
+          connection.ops.quote_name('post_id'), \
           ', '.join([str(post.id) for post in object_list]))])
     for tag in tags:
         if tag.post_id not in tagd:
@@ -106,9 +107,9 @@
def getcurrentsite(http_post, path_info, query_string):
     """ Returns the site id and the page cache key based on the request.
     """
-    url = 'http://%s/%s' % (http_post.rstrip('/'), \
-      path_info.lstrip('/'))
-    pagecachekey = '%s?%s' % (path_info, query_string)
+    url = u'http://%s/%s' % (smart_unicode(http_post.rstrip('/')),\
+     smart_unicode(path_info.lstrip('/')))
+    pagecachekey = u'%s?%s' % (smart_unicode(path_info), smart_unicode(query_string))
     hostdict = fjcache.hostcache_get()
     if not hostdict: