err, I'm not sure if I have understood you correctly. Can associate/connect using the wpa- stanzas with 2.6.20? If it doesn't work with NM, it might be that the driver backend algorithm is borked in network manager. In order to fix that, please attach a working /etc/network/interfaces to this bug. Please also say with what kernel version this works for you. This way we can check the driver detection algorithm in network-manager.
err, I'm not sure if I have understood you correctly. Can associate/connect using the wpa- stanzas with 2.6.20? If it doesn't work with NM, it might be that the driver backend algorithm is borked in network manager. In order to fix that, please attach a working /etc/network/ interfaces to this bug. Please also say with what kernel version this works for you. This way we can check the driver detection algorithm in network-manager.