Stuck at #25 on MSN forever; yet top 3 in Google for same single keyword

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How can I "unstick" MSN to budge the site upward?

The MSN and Google rankings have been consistent for
about 6 months already.  I'm happy with the Google
ranking but am dumbfounded why MSN hasn't moved the
site at all for the same period.

Zeal and Looksmart say they aren't responsible for
ranking placement on MSN.

Suggestions to overcome this are welcome.

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