warning when creating story

On a pretty vanilla drupal site from cvs, after enabling notification UI, would get these warnings:

* warning: implode() [function.implode]: Invalid arguments passed in /Users/afoo/www/drupal5cvs/sites/all/modules/notifications/notifications.module on line 312.
* warning: implode() [function.implode]: Invalid arguments passed in /Users/afoo/www/drupal5cvs/sites/all/modules/notifications/notifications.module on line 313.
* user warning: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '))' at line 1 query: SELECT s.*, f.* FROM notifications s INNER JOIN notifications_fields f ON s.sid = f.sid WHERE s.uid = 1 AND event_type = 'node' AND (()) in /Users/afoo/www/drupal5cvs/includes/database.mysqli.inc on line 151.

Modules installed include
- CCK: Address field, content, image, IP address
- Message: Messaging Framework, Simple Mail
- Notifications: notifications, notifications UI
- Other: Simplemenu, token
- Views: Views, Views UI