[Haskell-cafe] Twidge Short URL not working...

Hello, It's my first time using this mailing list thing so forgive me if I made any mistakes. I was using Twidge (http://wiki.github.com/jgoerzen/twidge/) and it's mentioned there is an available support in the Haskell Cafe. I only have a slight problem with Twidge. It's currently not shortening URLs by default though I can see in my .twidgerc this line "shortenurls: yes". Any things I should consider? Thanks!