Do as MT said above, and also you may have to use iwconfig to manually set the channel.

So, iwconfig wlan0 channel X (again X is the channel number).

In all you should be doing:
1. Loading the modules with the load.sh script.
2. Manually putting the card into monitor mode (as MT said above)
3. Manually set the channel to match that of your access point:
(as above)
4. Running airodump: airodump -c [Channel Number] wlan0