Most Emailed block configuration not saved

I just turned on this block. It doesn't appear, even though I've forwarded some content.
Also, when I use the radio button to select the type of block I want (all time vs. recent), hit save, and hit edit again, the radio button is unselected....
Has this (http://drupal.org/node/317496) patch been put in the current Dev?
Thanks for any tips.