diff --git a/Panda/Controller/Application.hs b/Panda/Controller/Application.hs
--- a/Panda/Controller/Application.hs
+++ b/Panda/Controller/Application.hs
@@ -63,7 +63,6 @@
   blogs <- Post.list.liftIO
   blogs.RSSV.rss "" "" .output
 
-
 blog = do
   id <- uri ^ ("blog/" ++)
   blog <- Post.get id .liftIO
diff --git a/Panda/Helper/Helper.hs b/Panda/Helper/Helper.hs
--- a/Panda/Helper/Helper.hs
+++ b/Panda/Helper/Helper.hs
@@ -17,7 +17,6 @@
 import Panda.Type.Pager as Pager hiding (empty)
 import MPS
 import Prelude hiding ((.), (/), (^), id)
-import Panda.Helper.MPSCandidate
 import Char
 import Data.List
 import Panda.Type.Reader
@@ -105,5 +104,8 @@
 
 class Resource a where
     resource_title :: a -> String
+
+class Markable a where
+    markup :: a -> Html
     
 spaced_url = gsub "/" " / "
diff --git a/Panda/Helper/MPSCandidate.hs b/Panda/Helper/MPSCandidate.hs
deleted file mode 100644
--- a/Panda/Helper/MPSCandidate.hs
+++ /dev/null
@@ -1,1 +0,0 @@
-module Panda.Helper.MPSCandidate where
diff --git a/Panda/Model/Comment.hs b/Panda/Model/Comment.hs
--- a/Panda/Model/Comment.hs
+++ b/Panda/Model/Comment.hs
@@ -19,6 +19,9 @@
 
 instance Resource Comment where
   resource_title = uid >>> spaced_url
+  
+instance Markable Comment where
+  markup x  = render_to_html Markdown (x.body)
 
 list_for post_id = do
   has_comments <- doesDirectoryExist d
@@ -64,5 +67,3 @@
 fill_comment_size x = do
   size <- x.Post.uid.list_for ^ length 
   return $ x { Post.comment_size = size }
-
-markup x  = render_to_html Markdown (x.body)
diff --git a/Panda/Model/Post.hs b/Panda/Model/Post.hs
--- a/Panda/Model/Post.hs
+++ b/Panda/Model/Post.hs
@@ -22,6 +22,9 @@
 
 instance Resource Post where
   resource_title = uid >>> id_to_resource
+
+instance Markable Post where
+  markup x  = render_to_html (x.reader) (x.body)
     
 list = ls G.blog_uri ^ map from_utf8 ^ rsort ^ map (G.blog_id /) >>= mapM get
 
@@ -39,4 +42,4 @@
 search "" = return []
 search s  = list ^ filter (match s)
 
-markup x  = render_to_html (x.reader) (x.body)
+
diff --git a/Panda/Model/Static.hs b/Panda/Model/Static.hs
--- a/Panda/Model/Static.hs
+++ b/Panda/Model/Static.hs
@@ -15,6 +15,9 @@
 
 instance Resource Static where
   resource_title = uid >>> spaced_url
+
+instance Markable Static where
+  markup x = render_to_html (x.reader) (x.body)
   
 get id        = liftM2 (Static id) (get_body id) (return $ get_reader id)
 get_title     = id_to_resource >>> dropExtension
@@ -22,5 +25,3 @@
 get_reader id = id.take_extension.guess_reader.fromMaybe G.default_reader
 
 title = uid >>> get_title
-
-markup x = render_to_html (x.reader) (x.body)
diff --git a/Panda/Type/Sidebar.hs b/Panda/Type/Sidebar.hs
--- a/Panda/Type/Sidebar.hs
+++ b/Panda/Type/Sidebar.hs
@@ -11,9 +11,10 @@
   }
   deriving (Show, Eq)
 
+instance Markable SidebarItem where
+  markup x  = render_to_html (x.reader) (x.body)
+
 read_sidebar_item default_reader s = liftM2 (SidebarItem name) body (return reader) where
   body = s.to_utf8.readFile
   reader = s.take_extension.guess_reader.fromMaybe default_reader
   name = s.takeFileName.dropExtension
-
-markup x  = render_to_html (x.reader) (x.body)
diff --git a/Panda/View/Control/Helper.hs b/Panda/View/Control/Helper.hs
--- a/Panda/View/Control/Helper.hs
+++ b/Panda/View/Control/Helper.hs
@@ -7,8 +7,8 @@
 
 
 nav p r = 
-  [ div_class "alighleft" << nav_next p r
-  , div_class "alignright" << nav_previous p r
+  [ div_class "alignleft" << nav_previous p r
+  , div_class "alignright" << nav_next p r
   ]
   
 nav_previous p r = if p.Pager.has_previous 
diff --git a/Panda/View/Widget/RSS.hs b/Panda/View/Widget/RSS.hs
--- a/Panda/View/Widget/RSS.hs
+++ b/Panda/View/Widget/RSS.hs
@@ -6,6 +6,7 @@
 import qualified Panda.Config.Global as G
 import Panda.Type.Pager as Pager
 import Text.RSS
+import qualified Text.RSS as RSS
 
 -- model
 import Panda.Model.Post as Post
@@ -14,11 +15,11 @@
 entry_uri x = "/" ++ Post.uid x.split "/".tail.join "/"
 
 -- RSS
-channel_rss_template = [ Language "en-us" ]
+channel_rss_template = [ RSS.Language "en-us" ]
 
 item_rss_template x = 
   [ Title $ x.Post.title
-  , Description $ x.Post.markup.show
+  , Description $ x.markup.show
   , Author $ G.author_email
   , Link $ x.item_uri
   , PubDate $ x.Post.date 
diff --git a/Panda/View/Widget/Sidebar.hs b/Panda/View/Widget/Sidebar.hs
--- a/Panda/View/Widget/Sidebar.hs
+++ b/Panda/View/Widget/Sidebar.hs
@@ -20,7 +20,7 @@
       [ feed state
       , tag_list $ state.State.tags
       ] 
-    custom_list = G.sidebar.map (\x -> h2 << x.Sidebar.name +++ x.Sidebar.markup)
+    custom_list = G.sidebar.map (\x -> h2 << x.Sidebar.name +++ x.markup)
     formatted_list = (stock_list ++ custom_list) .intersperse hr
 
 feed state = toHtml
diff --git a/changelog.markdown b/changelog.markdown
--- a/changelog.markdown
+++ b/changelog.markdown
@@ -1,11 +1,23 @@
-2008.10.11
+2008.10.12
 ----------
 
 ### Fix
 
+* navigation style typo
+
+
+2008.10.11
+----------
+
+### Feature
+
 * Proper title in header
+
+### Fix
+
 * Change to GPL ( since panda links to GPL libraries )
 
+
 2008.9.29
 ---------
 
@@ -13,6 +25,7 @@
 
 * Text based theme
 
+
 2008.9.28
 ---------
 
@@ -20,6 +33,7 @@
 
 * Add favicon config
 * Add google analytics config
+
 
 2008.9.20
 ----------
diff --git a/panda.cabal b/panda.cabal
--- a/panda.cabal
+++ b/panda.cabal
@@ -1,8 +1,8 @@
 Name:                 panda
-Version:              2008.10.11
+Version:              2008.10.12
 Build-type:           Simple
-Synopsis:             Simple Static Blog Engine
-Description:          Simple Static Blog Engine
+Synopsis:             A simple static blog engine
+Description:          A simple static blog engine
 License:              GPL
 License-file:         LICENSE
 Author:               Wang, Jinjing
@@ -14,7 +14,7 @@
 data-files:			      readme.markdown, changelog.markdown
 
 library
-  build-depends: base, cgi <= 3001.1.6.0, network, haskell98, old-locale, old-time, directory, filepath, containers, mps >= 2008.9.19, parsedate >= 3000.0.0, rss >= 3000.0.1, xhtml, kibro == 0.0, utf8-string >= 0.3.1, pandoc >= 0.46, MissingH, parsec >= 2
+  build-depends: base, cgi, network, haskell98, old-locale, old-time, directory, filepath, containers, mps >= 2008.9.19, parsedate >= 3000.0.0, rss >= 3000.0.1, xhtml, kibro == 0.0, utf8-string >= 0.3.1, pandoc >= 0.46, MissingH, parsec >= 2
   exposed-modules:  Panda
                     Panda.Config.Global
 
@@ -24,7 +24,6 @@
 
                     Panda.Helper.Env
                     Panda.Helper.Helper
-                    Panda.Helper.MPSCandidate
 
                     Panda.Model.Comment
                     Panda.Model.Post
diff --git a/readme.markdown b/readme.markdown
--- a/readme.markdown
+++ b/readme.markdown
@@ -39,7 +39,9 @@
 Install
 --------
 
-### install [lighttpd](http://www.lighttpd.net/ )
+### install [lighttpd (version 1.4.19)](http://www.lighttpd.net/ )
+
+Note: 1.4.20 is bugged for reason still unknown yet.
 
 
 ### install panda