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.

/* preview style examples */
body {
	background-color:#EFEFEF;
	font:70% Verdana, Arial, Helvetica, sans-serif;
}
blockquote {margin:1.5em;color:#666;font-style:italic;}