The consensus from the majority of reviews I found seems to be the 220 does not support Whatsapp.
Edit: Silly me, answered the wrong question! Someone online mentioned that they managed to install opera mini 4, so try your luck on m.opera.com using your phone's browser. In a bit of news that might tick you off though, microsoft and opera announced in august that opera mini will come pre installed on the last of the series 30+ and up devices. If you find one of these it might be easier to trade in your 220
