Have you tried the tops site.
www.tops.org . They have a message board that people post recipes on, and a lot of light cookbooks now give the exchanges. I checked the TOPS manual "The Choice is Yours". 1 exchange of starch/bread is 15 grams, 1 oz. lean meat is 1 exchange, veggies is usually 1/2 cup =1 exchange, 1 exchange of fruit is 60 calories. (Vegetables and fruit should be checked out, some vary in size)
Nita