Doesn't work on 1.8rc1 on gentoo

I can't get bzr-avahi to work on gentoo. On the latest version of the plugin:

~/.bazaar/plugins/avahi $ bzr pull lp:bzr-avahi
Unable to load plugin 'avahi' from '/home/jisakiel/.bazaar/plugins'
Enter passphrase for key '/home/jisakiel/.ssh/id_dsa':
No revisions to pull.

And of bzr (using a layman repository, but bzr ebuild should be the same as on portage):

dev-util/bzr
     Available versions: 1.5 (~)1.6.1 (~)1.7.1 (~)1.8_rc1 (~)1.8_rc1[1] {bash-completion curl doc emacs sftp test}

I get the following:
$ bzr -Derror advertise
Unable to load plugin 'avahi' from '/home/jisakiel/.bazaar/plugins'
bzr: ERROR: exceptions.ImportError: No module named server_mainloop

Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/bzrlib/plugin.py", line 210, in load_from_dir
    exec "import bzrlib.plugins.%s" % name in {}
  File "<string>", line 1, in <module>
  File "/home/jisakiel/.bazaar/plugins/avahi/__init__.py", line 36, in <module>
    from bzrlib.plugins.dbus.server_mainloop import MainloopThread
ImportError: No module named server_mainloop
bzr: ERROR: bzrlib.errors.BzrCommandError: unknown command "advertise"

Traceback (most recent call last):
  File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 849, in run_bzr_catch_errors
    return run_bzr(argv)
  File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 773, in run_bzr
    cmd_obj = get_cmd_object(cmd, plugins_override=not opt_builtin)
  File "/usr/lib/python2.5/site-packages/bzrlib/commands.py", line 140, in get_cmd_object
    raise errors.BzrCommandError('unknown command "%s"' % cmd_name)
BzrCommandError: unknown command "advertise"

¿Any ideas?