by lindastacy » Mon Feb 16, 2009 7:22 pm
When I look at the source code for your site I don't find the adsense code. I don't use Wordpress.com but I'm assuming the use of widgets is similar to self hosted WP. When you add or edit a widget there are two buttons you need to click to save the changes. One inside the widget box and the other at the bottom of all the widgets.
Try clicking both again and see if that works for you.
Otherwise, I'd suggest removing the widget and trying again. Also opy and paste the adsense code again just to be sure nothings missing from it.