If you use 
AdSense for search on your pages, we'd like to let you know about an upcoming change on December 10th that will affect your 
top queries reports. To prepare for a few upcoming reporting enhancements, top queries data older than a year old will no longer be available. In other words, you'll only be able to view top queries reports dating back one year from the day you're generating the report.
If you have important top queries data which are older than a year old, please run any appropriate 
reports and save them before December 10th. You may also wish to generate a report dating from the date you started with AdSense for search to today, as data not within the one year window will be continuously removed.
Posted by Arlene Lee - AdSense Publisher Support
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Posted By  Inside AdSense Team  to  
Inside AdSense  at  12/03/2007 10:37:00 AM