A Simple Pacman game

I have the game's logic in a Silverlight application and the various website aspx files in which the application will be run in. All that is required is 1) The game logic to placed in a webservice. 2) Movement control(UP,DOWN,LEFT RIGHT) of the pacman to remain in the silverlight application. 3)Encryption of the XML data.( the XML file will contain the name of the player and his associated high score). 4) The smooth running of the game in the website with controls to pause, restart, stop the game. 5) The game will be developed using visual studio 2010. There is also no problem if you can develop the pacman game running in a simple website(with four pages: Home, Game, View High Score and About) from scratch with the above listed specifications. This project is required to completely on or before 30th March 2012.