When you're looking at the page in the top right corner of the widget box should be an arrow or line to click and it will give you options to 'hide' or remove the widget from your page.
at 9:27 PM on Dec. 13, 2009
It is actually the X you click on in the corner.
It will give you 3 choices: Delete from Homepage, Delete from both your Homepage and Profile, or Cancel, which means you changed your mind and don't want to delete it.
If you want the widget gone for good, then click on the middle one to delete it from your Homepage and Profile page.
Hope that helps!