ajax.Autocompleter not working in Rails 3

I have spent most of today trying to make the ajax.Autocompleter work in a Rails 3 application.

To this point, I can get the autocompleter.local to work, but not the AJAX version.

The View: = form_for [:admin, @contact] do |f|   = f.error_messages   %p     = f.label :name_first, "First"     = f.text_field :name_first     = f.label :name_mi, "M"     = f.text_field :name_mi, :size => "5px"     = f.label :name_last, "Last"     = f.text_field :name_last   %p   = f.label :name_salutation, "Salutation"   = f.text_field :name_salutation, :size => "60px"   (ex. Mrs. Jones)   %p   = f.label :title, "Title"   = f.text_field :title, :size => "60px"   %p   = f.label :org_name   = f.text_field :org_name   %div.autocomplete#org_list

  :javascript     new ajax.Autocompleter('contact_org_name', 'org_list', "http:// localhost:3000/admin/contacts/autocomplete")   %p   = render 'autocomplete'eter   %p     = f.radio_button :is_male, "true"     = f.label "Male"     = f.radio_button :is_male, "false"     = f.label "Female"   %p     = f.radio_button :is_married, "true"     = f.label "Married"     = f.radio_button :is_married, "false"     = f.label "Single"

  %p     = f.submit