Wrong Description on Tags Pages

A few days ago I’ve tagged all my posts from my blog, and today I’ve noticed that Google indexed my tags, but unfortunately at description I see at all my tags the following description : “Archives. May 2008 (39); April 2008 (62); March 2008 (79); February 2008 (72); January 2008 (82); December 2007 (50); November 2007 (58); October 2007 (56) …”

Take a look at how the description for these tags looks, and please tell me what should I do.

http://www.google.com/search?hl=en&q=site:freshome.com&start=50&sa=N

Thanks !