Changes are pretty self-explantory

Index: vendor/plugins/facebooker/lib/facebooker/models/group.rb
===================================================================
--- vendor/plugins/facebooker/lib/facebooker/models/group.rb	(revision 781)
+++ vendor/plugins/facebooker/lib/facebooker/models/group.rb	(revision 783)
@@ -5,7 +5,7 @@
     # The model of a user's relationship to a group.  Users can occupy different positions within a group (e.g.
'owner')
     class Membership
       include Model
-      attr_accessor :position, :gid, :uid
+      attr_accessor :positions, :gid, :uid
     end
     include Model
     attr_accessor :pic, :pic_small, :pic_big, :name, :creator, :recent_news, :gid, :update_time, :group_subtype,
:group_type, :website, :office, :description, :venue, :nid
@@ -32,4 +32,4 @@
       end
     end
   end
-end
\ No newline at end of file
+end
Index: vendor/plugins/facebooker/lib/facebooker/session.rb
===================================================================
--- vendor/plugins/facebooker/lib/facebooker/session.rb	(revision 781)
+++ vendor/plugins/facebooker/lib/facebooker/session.rb	(revision 783)
@@ -176,8 +176,14 @@
             user
           when 'photo'
             Photo.from_hash(hash)
+          when 'event'
+            Event.from_hash(hash)
+          when 'group'
+            Group.from_hash(hash)
           when 'event_member'
             Event::Attendance.from_hash(hash)
+          when 'group_member'
+            Group::Membership.from_hash(hash)
           end
         end        
       end