Microsoft please give us full backwards compatability For Xbox 360

Dear Microsoft:
In 2005 you made the Xbox 360 and you have given it backwards compatibility which we really enjoy but ever since 2007 there have been no more updates which means you have stopped updating it. Ever since then we have been enjoying the backwards compatibility but there are still alot of original Xbox games don't work on the 360. This is bad because most people don't have the original Xbox anymore and they are looking forward to playing their old games on their 360 but they can't play most of their old games on their 360, some of these are their favorite games. There are alot of great original Xbox games out there that don't work on the 360. For instance, Deus Ex The Invisible War, Hitman 2 and Dead Man's Hand. So Microsoft, please do an update where we can play all of our original Xbox games on the 360 or at least the ones that you don't sell on the 360. We know that you are really busy with alot of things, but if you would do this for us we would really appreciate it because we still love playing our old games.