Hello, I installed Aircrack ng-1.0-rc1 and I also installed the patch for WiFi Zydas with this tutorial:
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Copy contents of /usr/src/linux/net/ieee80211 to a safe place
Copy contents of /usr/src/linux/drivers/net/wireless/zd1211rw to safe place

Copy zd1211rw_inject_2.6.23.patch to /usr/src/linux/

cd /usr/src/linux/
patch -Np1 --verbose --dry-run -i zd1211rw_inject_2.6.23.patch
patch -Np1 --verbose -i zd1211rw_inject_2.6.23.patch

Copy ieee80211_inject.patch to /usr/src/linux

patch -Np1 --verbose --dry-run -i ieee80211_inject.patch
patch -Np1 --verbose -i ieee80211_inject.patch

cd /usr/src/linux/drivers/net/wireless/zd1211rw
make -C /lib/modules/`uname -r`/build/ M=`pwd` modules
cd /usr/src/linux/net/ieee80211
make -C /lib/modules/`uname -r`/build/ M=`pwd` modules

cp /usr/src/linux/drivers/net/wireless/zd1211rw/zd1211rw.ko /lib/modules/`uname -r`/kernel/drivers/net/wireless/zd1211rw/zd1211rw.ko
cp /usr/src/linux/net/ieee80211/*.ko /lib/modules/`uname -r`/kernel/net/ieee80211/
cp /usr/src/linux/net/ieee80211/softmac/*.ko /lib/modules/`uname -r`/kernel/net/ieee80211/softmac/

depmod -ae

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but this comand:

cp /usr/src/linux/drivers/net/wireless/zd1211rw/zd1211rw.ko /lib/modules/`uname -r`/kernel/drivers/net/wireless/zd1211rw/zd1211rw.ko

does not find the file zd1211rw.ko

someone knows solve this problem?