thanks, it's old junk hardware, but it's fun!
briefly? it's not Windows, it is Linux. there is no brief description on how to use Linux.
long version?
kismet is one of the best (the best, IMHO) wardriving/wifi monitoring programs. it is very versatile. i can run it on my PDA (Zaurus), i can run it on antique laptop, i can reflash the guts to a Linksys AP and run it on there.
kismet comes with
GPSdrive, which drew these nice maps. you have to learn quite a bit, and juggle things around some, but the nice part is that it is all (legally) free. since it is not Windows, it is more reliable, also.
kismet ALSO comes with gpsmap, which will let you draw interesting maps later with the data that you saved. you have several choices of maps, and how to display your data. here is a drive i did at an airport, overlaid on a Terraserver map, with translucent range circles. the blue line is my track, the dots are AP's, assigned a random color. the range circles are VERY approximate. nothing except an isotropic source in free space will have a pattern like that. gpsmap can also draw the more exact hull measurements, based on every packet that it caught. that is much more accurate if you re-re-re-drive the area several times.
the hardware used on these particular drives:
ancient dead-battery Gateway Celeron 450 laptop. 6 gig HD, maxed out at 288MB ram (woohoo!)
old Orinoco wifi B card
cheap Garmin Etrex GPS
nice FAB omni magmount
it's old, it's slow, but it will run for months without crashing, and this particular setup will never get a virus.