I am getting an image from facebook by the URL: <http://external.ak.fbcdn.net/safe_image.php?d=d282e1e7c86c9270232f97ddc737df39&w=90&h=90&url=http%3A%2F%2Fi52.tinypic.com%2F2q0ixzl.jpg>

Now, I want a bigger version, like 200 by 200. Is there a URL for that? If not, how can I convert this image to a larger size?