Use the view_user_profile reverse view name for the profiles of non-logged in users.
--- a/pytask/templates/task/claim.html Thu Jan 20 17:47:41 2011 +0530
+++ b/pytask/templates/task/claim.html Fri Jan 21 00:17:10 2011 +0530
@@ -10,7 +10,7 @@
List of all the claims for the task <a href="{% url view_task task.id %}">{{task.title}}</a><br />
{% for claim in old_claims %}
<hr />
- <a href="{% url view_profile claim.claimed_by.id %}">{{claim.claimed_by.username}}</a>
+ <a href="{% url view_user_profile claim.claimed_by.id %}">{{claim.claimed_by.username}}</a>
on {{claim.claim_datetime|date:"D d M Y"}} at {{claim.claim_datetime|time:"H:i"}} wrote:<br />
{{claim.proposal|linebreaksbr}}<br />
{% endfor %}