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Wireless packet logging
Might want to try on of these?
Download and learn how to use the tools available in the Linux distro Backtrack.
Download here: http://www.remote-exploit.org/backtrack_download.html
Learn here: http://wiki.remote-exploit.org/index.php/Main_Page
And here: http://forums.remote-exploit.org/index.php?s=d61e2cb0e86b753e30558fb1f66fd133