If your scripts are not showing up int he menus, or if they act strange, then you should probably first trash preferences. Here's how:
On Mac, hold down the Command (apple), Option and Shift keys as you startup Bridge. You will get a dialog box asking if you want to reset preferences.
On Windows, Control Shift Alt
You can read more about Bridge Keyboard shortcuts here:http://www.photoshopuser.com/photoshopcs2_shortcuts.htm