diff --git a/lib/webrat/merb.rb b/lib/webrat/merb.rb
index 0f2257e..7f10c61 100644
--- a/lib/webrat/merb.rb
+++ b/lib/webrat/merb.rb
@@ -2,9 +2,9 @@ require "webrat/core"
 
 module Webrat
   class Session
-    include Merb::Test::RequestHelper
+    include Merb::Test::MakeRequest
     
-    attr_reader :response
+    attr_accessor :response
     
     def get(url, data, headers = nil)
       do_request(url, data, headers, "GET")
@@ -29,17 +29,36 @@ module Webrat
     def response_code
       @response.status
     end
-
-  protected
     
     def do_request(url, data, headers, method)
-      @response = request(url, :params => (data && data.any?) ? data : nil, :headers => headers, :method => method)
+      @response = request(url, 
+        :params => (data && data.any?) ? data : nil, 
+        :headers => headers, :method => method)
+      self.get(@response.headers['Location'], nil, @response.headers) if @response.status == 302
+    end
+    
+    def follow_redirect
       self.get(@response.headers['Location'], nil, @response.headers) if @response.status == 302
     end
 
   end
 end
 
+module Merb
+  module Test
+    module RequestHelper
+      def request(uri, env = {})
+        @session ||= Webrat::Session.new
+        @session.response = @session.request(uri, env)
+      end
+  
+      def follow_redirect
+        @session.follow_redirect
+      end
+    end
+  end
+end
+
 class Merb::Test::RspecStory
   def browser
     @browser ||= Webrat::Session.new
diff --git a/lib/webrat/merb/param_parser.rb b/lib/webrat/merb/param_parser.rb
index d2b55c7..107d269 100644
--- a/lib/webrat/merb/param_parser.rb
+++ b/lib/webrat/merb/param_parser.rb
@@ -1,21 +1,14 @@
 require "cgi"
-require "webrat/core_extensions/blank"
-require "webrat/merb/url_encoded_pair_parser"
+gem "extlib"
+require "extlib"
+require "merb-core"
+
+HashWithIndifferentAccess = Mash
 
 module Webrat
   class ParamParser
     def self.parse_query_parameters(query_string)
-      return {} if query_string.blank?
-
-      pairs = query_string.split('&').collect do |chunk|
-        next if chunk.empty?
-        key, value = chunk.split('=', 2)
-        next if key.empty?
-        value = value.nil? ? nil : CGI.unescape(value)
-        [ CGI.unescape(key), value ]
-      end.compact
-
-      UrlEncodedPairParser.new(pairs).result
+      Merb::Parse.query(query_string)
     end
   end
 end
\ No newline at end of file
diff --git a/lib/webrat/merb/url_encoded_pair_parser.rb b/lib/webrat/merb/url_encoded_pair_parser.rb
deleted file mode 100644
index 1182395..0000000
--- a/lib/webrat/merb/url_encoded_pair_parser.rb
+++ /dev/null
@@ -1,97 +0,0 @@
-require "cgi"
-require "strscan"
-require "webrat/core_extensions/hash_with_indifferent_access"
-
-class UrlEncodedPairParser < StringScanner #:nodoc:
-    attr_reader :top, :parent, :result
-
-    def initialize(pairs = [])
-      super('')
-      @result = {}
-      pairs.each { |key, value| parse(key, value) }
-    end
-
-    KEY_REGEXP = %r{([^\[\]=&]+)}
-    BRACKETED_KEY_REGEXP = %r{\[([^\[\]=&]+)\]}
-
-    # Parse the query string
-    def parse(key, value)
-      self.string = key
-      @top, @parent = result, nil
-
-      # First scan the bare key
-      key = scan(KEY_REGEXP) or return
-      key = post_key_check(key)
-
-      # Then scan as many nestings as present
-      until eos?
-        r = scan(BRACKETED_KEY_REGEXP) or return
-        key = self[1]
-        key = post_key_check(key)
-      end
-
-      bind(key, value)
-    end
-
-    private
-      # After we see a key, we must look ahead to determine our next action. Cases:
-      #
-      #   [] follows the key. Then the value must be an array.
-      #   = follows the key. (A value comes next)
-      #   & or the end of string follows the key. Then the key is a flag.
-      #   otherwise, a hash follows the key.
-      def post_key_check(key)
-        if scan(/\[\]/) # a[b][] indicates that b is an array
-          container(key, Array)
-          nil
-        elsif check(/\[[^\]]/) # a[b] indicates that a is a hash
-          container(key, Hash)
-          nil
-        else # End of key? We do nothing.
-          key
-        end
-      end
-
-      # Add a container to the stack.
-      def container(key, klass)
-        type_conflict! klass, top[key] if top.is_a?(Hash) && top.key?(key) && ! top[key].is_a?(klass)
-        value = bind(key, klass.new)
-        type_conflict! klass, value unless value.is_a?(klass)
-        push(value)
-      end
-
-      # Push a value onto the 'stack', which is actually only the top 2 items.
-      def push(value)
-        @parent, @top = @top, value
-      end
-
-      # Bind a key (which may be nil for items in an array) to the provided value.
-      def bind(key, value)
-        if top.is_a? Array
-          if key
-            if top[-1].is_a?(Hash) && ! top[-1].key?(key)
-              top[-1][key] = value
-            else
-              top << {key => value}.with_indifferent_access
-              push top.last
-              value = top[key]
-            end
-          else
-            top << value
-          end
-        elsif top.is_a? Hash
-          key = CGI.unescape(key)
-          parent << (@top = {}) if top.key?(key) && parent.is_a?(Array)
-          top[key] ||= value
-          return top[key]
-        else
-          raise ArgumentError, "Don't know what to do: top is #{top.inspect}"
-        end
-
-        return value
-      end
-
-      def type_conflict!(klass, value)
-        raise TypeError, "Conflicting types for parameter containers. Expected an instance of #{klass} but found an instance of #{value.class}. This can be caused by colliding Array and Hash parameters like qs[]=value&qs[key]=value. (The parameters received were #{value.inspect}.)"
-      end
-end
\ No newline at end of file