I'm not really sure how to get this to work either. The sample page works fine. But on my actual squeeze page, it doesn't.
I noticed that when I remove the aweber script from action="" in the it does work. But if I do direct to Aweber, it never runs the scrip and thus, doesn't register an optin.

I'm with you Bauke. Test works but the real thing doesn't. Instructions missing from setup.pdf??

I agree, some better instructions or a simpler tool would be appreciated.