Upgraded BIT to 10.0.28, now will not start

Realized that my BIT was not updating today so I corrected this and upgraded to version 10.0.28 on an Unbuntu 10.04 LTS system. Error is as follows:

# backintime-gnome

Back In Time
Version: 1.0.28

Back In Time comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it
under certain conditions; type `backintime-gnome --license' for details.

Traceback (most recent call last):
  File "/usr/share/backintime/gnome/app.py", line 1280, in <module>
    main_window = MainWindow( cfg, app_instance )
  File "/usr/share/backintime/gnome/app.py", line 333, in __init__
    mnt = mount.Mount(cfg = self.config, profile_id = profile_id, parent = self.window)
  File "/usr/share/backintime/common/mount.py", line 52, in __init__
    pw_cache = password.Password_Cache(self.config)
  File "/usr/share/backintime/common/password.py", line 252, in __init__
    self.keyring_supported = tools.keyring_supported()
  File "/usr/share/backintime/common/tools.py", line 511, in keyring_supported
    backends = (keyring.backend.SecretServiceKeyring,
AttributeError: 'module' object has no attribute 'SecretServiceKeyring'

I have tried running BIT as root and as a reg user.