Changed the avatar upload_to path to not rely on the user supplied name, as this has caused problems in the past (too long). Now just store avatars under media/avatars/users/username.ext.

{% load url from future %}
{% load markup %}
{% load smiley_tags %}
{% load bio_tags %}
{% avatar user 0 "left" %}{% profile_link user.username %}:<br />{{ msg|safe }}