--- a/src/cm/templates/site/export.xml	Mon Sep 24 01:12:12 2012 -0700
+++ b/src/cm/templates/site/export.xml	Mon Sep 24 12:11:49 2012 +0200
@@ -1,10 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
 {% load com %}
 {% autoescape off %}
-<?xml version="1.0" encoding="UTF-8"?>
 <co_ment_text>
   <title>{{ title }}</title>
-  <created>{{ created|date:"c" }}+{{ tz|leading_zeros:"2" }}</created>
-  <modified>{{ modified|date:"c" }}+{{ tz|leading_zeros:"2" }}</modified>
+  <created>{{ created|date:"c" }}{{ tz|leading_zeros:"2" }}</created>
+  <modified>{{ modified|date:"c" }}{{ tz|leading_zeros:"2" }}</modified>
   <name>{{ name }}</name>
   <email>{{ email }}</email>
   <format>{{ format }}</format>
@@ -23,8 +23,8 @@
       <title>{{ c.title }}</title>
       <state>{{ c.state }}</state>
       <deleted>{{ c.deleted }}</deleted>
-      <created>{{ c.created|date:"c" }}+{{ tz|leading_zeros:"2" }}</created>
-      <modified>{{ c.modified|date:"c" }}+{{ tz|leading_zeros:"2" }}</modified>
+      <created>{{ c.created|date:"c" }}{{ tz|leading_zeros:"2" }}</created>
+      <modified>{{ c.modified|date:"c" }}{{ tz|leading_zeros:"2" }}</modified>
       <name>{{ c.name }}</name>
       <email>{{ c.email }}</email>
       <format>{{ c.format }}</format>

--- a/src/cm/templatetags/com.py	Mon Sep 24 01:12:12 2012 -0700
+++ b/src/cm/templatetags/com.py	Mon Sep 24 12:11:49 2012 +0200
@@ -322,10 +322,15 @@
   """
   Given an integer, returns a string representation, padded with [desired_digits] zeros.
   """
-  num_zeros = int(desired_digits) - len(str(value))
+  int_val = int(value)
+  if (int_val > 0):
+    sign = '+'
+  else:
+    sign = '-'
+  num_zeros = int(desired_digits) - len(str(abs(int_val)))
   padded_value = []
   while num_zeros >= 1:
     padded_value.append("0") 
     num_zeros = num_zeros - 1
-  padded_value.append(str(value))
-  return "".join(padded_value)
+  padded_value.append(str(abs(int_val)))
+  return sign + "".join(padded_value)