Using geokit-rails3 and getting Unknown key(s): bounds

Hello posted this question in the Geokit group but there seems to be
very little activity in that forum som i will try here instead.

No on to my little problem

class IntrestPoint < ActiveRecord::Base
acts_as_mappable :default_units => :kilometers,
:lat_column_name => :lattitude,
:lng_column_name => :longitude,
:auto_geocode => {:field => :address, :error =>
‘could not geocode adress’}
end

i have set up a class like this, now if i enter an adress in my rails
app it gets
correctly geocoded into long and lat so far so god.

But when i try to query for a certain bounds like this

def get_intrest_points_within_bounds
 @sw_point__=params[:sw_point]
 @ne_point_ =params[:ne_point]
 @intrest_point =

IntrestPoint.find(:all,:bounds=>[:sw_point_,:ne_point_])
respond_to do |format|
format.html
format.xml {render :xml => @intrest_point}
format.json {render :json => @intrest_point}
end
end

all i get is an ActionController Exeption Unknown key(s): bounds
all my parameters in the url seem to be fine

{“get_intrest_points_within_bounds”=>“get_intrest_points_within_bounds”,
“ne_point”=>“59.759162,
16.777496”,
“sw_point”=>“59.470199,
16.338043”}

the same goes for :within so im guessing something is not included the
way it should be which brings me to my next question i have seen some
tutorials state that you should have the line include Geokit::Mappable
but where do i put this line ? or is it something that is deprecated
since rails3 ?( my best guess is that the include should be in my
IntrestPoint model but act_as_mappable and reverse geocoding seems to
work even if i dont put include anywhere)

totally new to the web world here so mabey i am missing something
really simple (i am a c/c++ programmer mainly with some obj-c latley)