Here you will find all free download links to various wifigator related products.

Open-Mesh firmware Installer (stand alone)
(http://open-mesh.com)

Stable Open-Mesh Firmware (use with AP51 Flash)
(http://open-mesh.com)

freifunk's AP51 Flash Tool (Ja! Das ist so wunderbar!)
(http://freifunk.net)

WinPcap 4.1.1 for Windows(required for flashing)
(http://winpcap.org)

WinSCP 4.2.7 for Windows (Our favorite CSP client)
(http://winscp.net)

PuTTY 0.60 for windows (place in C:Program FilesPuTTY for winscp)
(http://putty.very.rulez.org)