Si tu es en amd64, tu as le module de ta caete ici: http://boisson.homeip.net/debian/alx-amd64-3.2.0-2.ko, il est assez simplke à compiler et 3.2.0-2 est a priori le noyau d’installation.
Si ton installation est en i386, celui là devrait convenir
http://boisson.homeip.net/debian/alx-486-3.2.0-2.ko
modinfo ./compat-wireless-2012-03-12-p/drivers/net/ethernet/atheros/alx/alx.ko
filename: /var/wheezy386/tmp/./compat-wireless-2012-03-12-p/drivers/net/ethernet/atheros/alx/alx.ko
license: Dual BSD/GPL
description: Qualcomm Atheros Gigabit Ethernet Driver
author: Qualcomm Corporation, <nic-devel@qualcomm.com>
alias: pci:v00001969d00001090sv*sd*bc*sc*i*
alias: pci:v00001969d00001091sv*sd*bc*sc*i*
alias: pci:v00001969d00002062sv*sd*bc*sc*i*
alias: pci:v00001969d00002060sv*sd*bc*sc*i*
alias: pci:v00001969d00001083sv*sd*bc*sc*i*
alias: pci:v00001969d00001073sv*sd*bc*sc*i*
alias: pci:v00001969d00001062sv*sd*bc*sc*i*
alias: pci:v00001969d00001063sv*sd*bc*sc*i*
depends: compat
vermagic: 3.2.0-2-486 mod_unload modversions 486
Tu as bien ta carte dedans (v00001969d00001090)