OH HAI! Awesome little tutorial/plugin/I-don't-know here :) I solved abenamer@yahoo.com's problem. It originates in the controller in your rate definition, specifically:
@landlord.rate(rating, current_user.person)
As you said, you used person instead of user, but it might have been vague. Regardless, you need to use something like:
@landlord.rate(rating, current_user)
if you are using the standard user system.
That is all.
