I've just installed age of armor and it's in Chinese...what am I missing?

The devs know its in chinese. Currently, its supposed to be like that. Don't worry, you downloaded the right client. If you look at some screenies from the forums you can see that some things inside the game are in english (or maybe its just the chatting..).

Hopefully they'll patch that up soon, I was kind of confused there myself.

the game isnt chinese... only the updater ... they are changing that yet.