Typically, with Minecraft updates, servers must wait until Bukkit (the plugin manager and server mod) updates and is aligned correctly with the new changes to the game. MC Zone has taken a step forward and modified the server to accept clients using the updated version. There is one big problem with this: Any of the new changes to Minecraft will not work (new blocks mainly). Currently, chests do not work and I am working on a temporary fix that will help. Crafting is a little messed up as well.
Note: You must update your client to play on MC Zone. 1.4.7 will not work.