How do i fix a key that broke off my laptop keyboard?

I have an Alienware m7700 Aurora and I recently broke the right arrow key off it =\ The bracket thingy is still intact but the key part came off and I still have it. There's still the rubber part of which I can press to use the right arrow key, but it doesn't work that efficiently. So can anybody tell me how to put the key back into its place? Thanks. Any type of help will be appreciated.