That JiWire app does not find access points, it just... umm... locates them. You punch in hwere you are, it access a database, and gives you pay and free WiFi APs.
fisherKing and myself, and I'm sure others, are looking for a Dashboard version of MacStumbler (macstumbler.com) that ACTUALLY uses the AirPort hardware to find access points. As a roving network tech with Tiger, that would be absolutely positively one of them ost useful Widgets ever. EVAR!!!