has many :through, accessing join model attribute (newbie)

from the rails recipes i have a has_many through "working".
I can list a user and what magazines he subscribes to. but I can't
seem to figure out how to get the other attributes from subscriptions.
(like last_renewed_on)

reader_controller.rb

def list_reader
  @readers = Reader.find(1)
end

If you are using edge Rails, it makes it a lot easier to handle this
kind of relationship. I would look at the DHH's Railsconf 2006 pdf
presentation online. It has similar examples. Another great resource
is Peepcode screencast on RESTful Rails.

Since the has_many through plugin has become part of the edge Rails,
will it create any problem if I have the plugin installed and use the
edge Rails at the same time?

I'll check those out. thanks