Rhythbox plugins problem

[051106]

i got some messages when launching rhythmbox under debian lenny:
some plugins dont work
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ImportError: could not import gst

(rhythmbox:5576): Rhythmbox-WARNING **: Could not open device /dev/radio0
Traceback (most recent call last):
File "/usr/lib/rhythmbox/plugins/jamendo/__init__.py", line 28, in ?
from JamendoSource import JamendoSource
File "/usr/lib/rhythmbox/plugins/jamendo/JamendoSource.py", line 45, in ?
class JamendoSource(rb.BrowserSource):
AttributeError: 'module' object has no attribute 'BrowserSource'

(rhythmbox:5576): Rhythmbox-WARNING **: Could not load plugin jamendo


(rhythmbox:5576): Rhythmbox-WARNING **: Error, impossible to activate plugin 'Jamendo'
Traceback (most recent call last):
File "/usr/lib/rhythmbox/plugins/artdisplay/__init__.py", line 315, in ?
class ArtDisplayPlugin (rb.Plugin):
AttributeError: 'module' object has no attribute 'Plugin'

(rhythmbox:5576): Rhythmbox-WARNING **: Could not load plugin artdisplay


(rhythmbox:5576): Rhythmbox-WARNING **: Error, impossible to activate plugin 'Pochette'
Traceback (most recent call last):
File "/usr/lib/rhythmbox/plugins/magnatune/__init__.py", line 32, in ?
from MagnatuneSource import MagnatuneSource
File "/usr/lib/rhythmbox/plugins/magnatune/MagnatuneSource.py", line 48, in ?
class MagnatuneSource(rb.BrowserSource):
AttributeError: 'module' object has no attribute 'BrowserSource'

(rhythmbox:5576): Rhythmbox-WARNING **: Could not load plugin magnatune


(rhythmbox:5576): Rhythmbox-WARNING **: Error, impossible to activate plugin 'Boutique Magnatune'
----
need help, thanks

[051106]

find the solution!!!!

rhythmbox must depends on python-gst. I have to install it manually
otherwise some plugins (cover art, jamendo, magnatune store, song
lyrics) will not work.