Here's the up to date food block guide: http://drsears.com/ArticlePreview/t...fault.aspx
To make it easier try following Zone At-a-Glance instead of counting blocks. It frees you from measuring and counting and it works great to keep you in the Zone. It's the way I lost 100 pounds. You can find it here: http://www.zonediet.com/tools/zone-classic
A tip, no one is expected to eat 10 cups of lettuce at one sitting. Having the block info about lettuce lets you know that the usual amount of lettuce in a salad is a negligible amount of carbohydrate.