What version are you using? I presume the one on bt3 beta. There have been a few updates to it already. If you download the latest version, version 1.3 i've found i dont have to edit the scapy.py or wifizoo.py, which makes things a lot simpler. I've used a broadcom and atheros card. And it seems to run smoother. Just download extract and run. But you do have to sepecify your network card when executing wifizoo like so:
1. move to your wifizoo v1.3 folder
2.
Code:
python wifizoo.py -i ath0
3. navigate to 127.0.0.1:8000
You can get the latest v1.3:
url - community.corest.com/~hochoa/wifizoo/index.html
Or if you're interested can have a look at a version i have made with a few graphical changes at:
url - http://www.killthepage.com