def seller_search(seller_id, weight=HEAVY, offer_status='open',
                            page=1, &block)
            
            
            unless @locale == 'us'
              raise LocaleError, "search type invalid in '#{@locale}' locale"
            end
            url = AWS_PREFIX + "?t=%s&SellerSearch=%s&f=xml&type=%s" +
                  "&dev-t=%s&page=%s"
            type = WEIGHT[weight]
            if ThirdParty.offer_status_types.include? offer_status
              url << "&offerstatus=" << offer_status
            else
              raise StatusError, "'offer_status' must be one of %s" %
                                 ThirdParty.offer_status_types.join(', ')
            end
            search(url % [@id, seller_id, type, @token, page], &block)
          end