Intrepid: Get Covers from Amazon via AlbumArt doesn't work

Binary package hint: quodlibet-plugins

I can't fetch a single album cover from Amazon. This stopped a while ago inside Hardy and is still the case in intrepid. When i try to get a album cover, i see the following error message inside a terminal:

[...]
Exception in thread Thread-3:
Traceback (most recent call last):
  File "/usr/lib/python2.5/threading.py", line 486, in __bootstrap_inner
    self.run()
  File "/usr/lib/python2.5/threading.py", line 446, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/usr/share/quodlibet/plugins/songsmenu/albumart.py", line 120, in __search
    query, type="lite", product_line="music")
  File "/usr/share/quodlibet/plugins/songsmenu/_amazon.py", line 316, in searchByKeyword
    return search("KeywordSearch", keyword, product_line, type, page, license_key, http_proxy, locale, associate)
  File "/usr/share/quodlibet/plugins/songsmenu/_amazon.py", line 294, in search
    xmldoc = minidom.parse(usock)
  File "/usr/lib/python2.5/xml/dom/minidom.py", line 1915, in parse
    return expatbuilder.parse(file)
  File "/usr/lib/python2.5/xml/dom/expatbuilder.py", line 928, in parse
    result = builder.parseFile(file)
  File "/usr/lib/python2.5/xml/dom/expatbuilder.py", line 207, in parseFile
    parser.Parse(buffer, 0)
ExpatError: junk after document element: line 1, column 26

I'm using here a up-to-date Ubuntu Intrepid Ibex

$ dpkg -l quodlibet*
[...]
ii quodlibet 1.0.ds1-2ubuntu1 audio library manager and player for GTK+
ii quodlibet-ext 1.0.ds1-2ubuntu1 extensions for the Quod Libet audio player
ii quodlibet-plugins 20070625-1ubuntu2 various contributed plugins for Quod Libet