Just curious, but would the official debian kismet package for armel work?
http://packages.debian.org/en/sid/armel/kismet/download
As the eko-repository is gone (and I didn't keep the .deb) I am hesitant to test it on my device but maybe this one runs just fine (with some major configuring, though, as you would have to choose the correct capturing device and stuff in the .conf-files)