Help! Adsense lost in iWeb published website.

I don't know if any of your have encountered this problem before. But after several updates on my website using iWeb 2.0.3 (latest update), the Adsense inserts doesn't seem to show in the published site anymore. Instinctively, I checked and rechecked in the iWeb data file, but everything seems to be correct. The Adsense bars are exactly where I put them the last round.

So the question is - Why was it working the last time, and not now. If there's nothing wrong with the data file, then is there anything wrong with the application?