woops, this is old location, now it's on the toolbar

animation_rotobezier.py

@@ -22,7 +22,7 @@ bl_addon_info = {
     'version': (0, 6),
     'blender': (2, 5, 5),
     'api': 33232,
-    'location': 'Select a Curve: Properties > Curve > RotoBezier panel',
+    'location': 'Select a Curve: Toolbar > RotoBezier panel',
     'description': 'Allows animation of bezier curves for rotoscoping',
     'warning': 'Currently adding new CVs to an already animated curve isn\'t safe', 
     'wiki_url': 'http://wiki.blender.org/index.php/Extensions:2.5/Py/'\