diff -ur conditional_fields.module conditional_fields.module
--- conditional_fields.module	2010-10-29 13:15:36.000000000 -0500
+++ conditional_fields.module	2011-03-10 00:12:34.000000000 -0600
@@ -309,6 +309,9 @@
     case 'content_copy_import_form':
       $form['#submit'][] = 'conditional_fields_import';
       break;
+    case 'user_register':
+      conditional_fields_node_editing_form($form, $form_state);
+      break;
   }
 
   if (isset($form['type']['#value']) && $form_id == $form['type']['#value'] . '_node_form') {
@@ -643,9 +646,42 @@
   if ($form_state['clicked_button']['#ahah']) {
     return $form;
   }
+  // Find all content profile types used in this form
+  $form_ctypes = (array_key_exists('#content_profile_registration_use_types', $form) && is_array($form['#content_profile_registration_use_types'])) ?
+      array_keys($form['#content_profile_registration_use_types']) : array($form['type']['#value']);
+ 
+  $js_settings = array();
+  $ui_settings_type = NULL;
+  foreach($form_ctypes as $form_ctype) {
+    // Update the form & js settings for each content profile type
+    $form = conditional_fields_node_type_after_build($form, $form_state, $form_ctype, $js_settings);
+    // Use the user interface settings of the first content profile that has them.
+    if (! $ui_settings_type && variable_get('c_fields_js_' . $form_ctype, NULL))
+      $ui_settings_type = $form_ctype;
+  }
 
-  $type_name = $form['type']['#value'];
+  // Hopefully, we found out above which content type has UI settings. Now, we'll use them.
+  $ui_settings = variable_get('c_fields_js_' . $ui_settings_type, C_FIELDS_JS_HIDE);
+  switch ($ui_settings) {
+    case C_FIELDS_JS_DISABLE:
+      $js_settings['ui_settings'] = 'disable';
+      break;
+    case C_FIELDS_JS_HIDE:
+      $js_settings['ui_settings']['animation'] = (int)variable_get('c_fields_animation_' . $ui_settings_type, C_FIELDS_ANIMATION_NO);
+      $js_settings['ui_settings']['anim_speed'] = variable_get('c_fields_anim_speed_' . $ui_settings_type, "normal");
+      break;
+  }
+
+  if ($ui_settings != C_FIELDS_JS_NO) {
+    conditional_fields_add_js($js_settings);
+  }
+
+  $form['#conditional_fields']['settings'] = $js_settings;
 
+  return $form;
+}
+
+function conditional_fields_node_type_after_build($form, &$form_state, $type_name, &$js_settings) {
   // Do nothing if there are no conditional fields
   if (!$data = conditional_fields_load_data($type_name)) {
     return $form;
@@ -655,7 +691,6 @@
   $missing_controlling_fields = array();
   $controlled_fields = array();
   $required_fields = array();
-  $js_settings = array();
 
   foreach ($data as $row) {
     $controlling_fields[$row['control_field_name']][$row['field_name']] = $row['trigger_values'];
@@ -778,26 +813,9 @@
     }
   }
 
-  // Apply user interface settings
-  $ui_settings = variable_get('c_fields_js_' . $type_name, C_FIELDS_JS_HIDE);
-  switch ($ui_settings) {
-    case C_FIELDS_JS_DISABLE:
-      $js_settings['ui_settings'] = 'disable';
-      break;
-    case C_FIELDS_JS_HIDE:
-      $js_settings['ui_settings']['animation'] = (int)variable_get('c_fields_animation_' . $type_name, C_FIELDS_ANIMATION_NO);
-      $js_settings['ui_settings']['anim_speed'] = variable_get('c_fields_anim_speed_' . $type_name, "normal");
-      break;
-  }
-
-  if ($ui_settings != C_FIELDS_JS_NO) {
-    conditional_fields_add_js($js_settings);
-  }
-
   // Pass variables for validation
   $form['#conditional_fields']['data'] = $data;
   $form['#conditional_fields']['required_fields'] = $required_fields;
-  $form['#conditional_fields']['settings'] = $js_settings;
 
   // Add validation function
   $form['#validate'] = array_merge(array('conditional_fields_node_editing_form_validate'), (array)$form['#validate']);
@@ -934,7 +952,7 @@
       }
       else {
         // Do not submit values of controlled fields which were not triggered (except on preview)
-        if (variable_get('c_fields_reset_default_' . $form['type']['#value'], 1)
+        if (variable_get('c_fields_reset_default_' . $type_name, 1)
           && !in_array('node_form_build_preview', (array)$form_state['submit_handlers'])) {
             // Load default values like in content_field_form() in content.node_form.inc
             $controlled_field_info = $form['#field_info'][$controlled_field_name];
@@ -965,8 +983,8 @@
         }
         else {
           // Do not submit values of controlled fields which were not triggered (except on preview)
-          if (variable_get('c_fields_reset_default_' . $form['type']['#value'], 1) &&
-            !in_array('node_form_build_preview', $form_state['submit_handlers'])) {
+          if (variable_get('c_fields_reset_default_' . $type_name, 1) &&
+            !in_array('node_form_build_preview', (array)$form_state['submit_handlers'])) {
               // Load default values like in content_field_form() in content.node_form.inc
               $field_in_group_info = $form['#field_info'][$field_in_group];
               if (content_callback('widget', 'default value', $field_in_group_info) != CONTENT_CALLBACK_NONE) {