diff -ru original_templates/error.cs templates/error.cs
--- original_templates/error.cs	2005-12-05 10:31:19.000000000 -0800
+++ templates/error.cs	2006-04-25 10:37:09.000000000 -0700
@@ -10,6 +10,28 @@
   <?cs var:error.message ?>
   </p>
 
+<?cs
+def:repeat_string(string, count) ?><?cs
+	loop:i = #1, count, #1 ?><?cs
+		var:string ?><?cs
+	/loop ?><?cs
+/def ?><?cs
+def:dump(item, level) ?>
+<?cs
+	call:repeat_string("  ", level) ?><?cs var:name(item) ?> = <?cs var:item ?><?cs
+	if:subcount(item) > 0 ?>{<?cs
+		each:child = item ?><?cs
+			call:dump(child, level + 1) ?><?cs
+		/each ?>
+<?cs
+	call:repeat_string("  ", level) ?>}<?cs
+	/if ?><?cs
+/def ?>
+
+  <?cs if:error.show_params ?>
+   <pre><?cs call:dump(error.params, 0) ?></pre>
+  <?cs /if ?>
+
  <?cs elif error.type == "internal" ?>
   <h3>Oops...</h3>
   <div class="message">