For Django 1.6: contrib auth password reset confirm view signature changed. The uidb64 parameter was previously base 36 encoded and named uidb36. Had to update urls.py. While I was in there I decided to make the password reset email use the {% url %} tag to be more resilient if the url changes.

.mcePageBreak {display:block;border:0;width:100%;height:12px;border-top:1px dotted #ccc;margin-top:15px;background:#fff url(../img/pagebreak.gif) no-repeat center top;}