I tried to help but couldn't find the one you are asking about. I don't have the time to go do it but did you try and search the "cooking light indexes", I don't have the link for them but I am sure that someone can help out there. What about searching the recipes by month and year? Both of these ideas would take some time but you might be able to find it and maybe a little faster if you could narrow down about how old the magazine is. Good luck!
"Everyone is kneaded out of the same dough but not baked in the same oven." - Yiddish Proverb