diff --git a/app/models/post.rb b/app/models/post.rb
index 4d04af25e..14a29e2ec 100644
--- a/app/models/post.rb
+++ b/app/models/post.rb
@@ -155,6 +155,10 @@ class Post < ActiveRecord::Base
       image_width > Danbooru.config.large_image_width
     end
     
+    def has_large
+      has_large?
+    end
+    
     def large_image_width
       [Danbooru.config.large_image_width, image_width].min
     end
@@ -297,7 +301,7 @@ class Post < ActiveRecord::Base
     end
     
     def create_tags
-      set_tag_string(tag_array.map {|x| Tag.find_or_create_by_name(x).name}.uniq.join(" "))
+      set_tag_string(tag_array.map {|x| Tag.find_or_create_by_name(x).name}.uniq.sort.join(" "))
     end
     
     def increment_tag_post_counts
@@ -356,7 +360,7 @@ class Post < ActiveRecord::Base
         current_tags = tag_array_was()
         new_tags = tag_array()
         old_tags = Tag.scan_tags(old_tag_string)        
-        set_tag_string(((current_tags + new_tags) - old_tags + (current_tags & new_tags)).uniq.join(" "))
+        set_tag_string(((current_tags + new_tags) - old_tags + (current_tags & new_tags)).uniq.sort.join(" "))
       end
     end
     
@@ -377,7 +381,7 @@ class Post < ActiveRecord::Base
       normalized_tags = filter_metatags(normalized_tags)
       normalized_tags = %w(tagme) if normalized_tags.empty?
       normalized_tags.sort!
-      set_tag_string(normalized_tags.uniq.join(" "))
+      set_tag_string(normalized_tags.uniq.sort.join(" "))
     end
     
     def filter_metatags(tags)
@@ -828,12 +832,19 @@ class Post < ActiveRecord::Base
     def to_xml(options = {}, &block)
       # to_xml ignores the serializable_hash method
       options ||= {}
-      options[:methods] = [:uploader_name]
+      options[:methods] = [:uploader_name, :has_large]
       options[:except] ||= []
       options[:except] += hidden_attributes
       super(options, &block)
     end
     
+    def serializable_hash(options = {})
+      hash = super(options)
+      hash["uploader_name"] = uploader_name
+      hash["has_large"] = has_large
+      hash
+    end
+    
     def to_legacy_json
       return {
         "has_comments" => last_commented_at.present?,
diff --git a/app/views/layouts/_main_links.html.erb b/app/views/layouts/_main_links.html.erb
index 919121d8d..d0944c6e9 100644
--- a/app/views/layouts/_main_links.html.erb
+++ b/app/views/layouts/_main_links.html.erb
@@ -9,8 +9,8 @@
   <%= nav_link_to("Notes", notes_path(:group_by => "post")) %>
   <%= nav_link_to("Wiki", wiki_pages_path(:title => "help:home")) %>
   <%= nav_link_to("Forum", forum_topics_path, :class => (CurrentUser.user.has_forum_been_updated? ? "forum-updated" : nil)) %>
-  <%= nav_link_to("Artists", artists_path(:order => "date")) %>
-  <%= nav_link_to("Tags", tags_path(:order => "date")) %>
+  <%= nav_link_to("Artists", artists_path(:search => {:order => "date"})) %>
+  <%= nav_link_to("Tags", tags_path(:search => {:order => "date"})) %>
   <% if CurrentUser.is_moderator? %>
     <%= nav_link_to("Aliases", tag_aliases_path) %>
     <%= nav_link_to("Implications", tag_implications_path) %>