Now that you added the gorgonzola, I did a search. Gorgonzola didn't show anything, but blue cheese did. Here's the obvious possibilities:
Blue Cheese Salad
Cuisine at home No. 36 (December 2002), page 23
The Extreme Salad! So much flavor and texture you can't stop eating it.
Salad Dressings Revived
Cuisine at home No. 34 (August 2002), pages 22-25
We all have our favorites. Here are four classics that are so good, you'll never buy them bottled again.
These are my picks for what seems like you're looking for. But you may want to look for yourself. The online index is available for anybody with a subscription, just click on the Customer Service link on the navigator bar on the left of the magazine home page, type in your info (either your code on your magazine, or your email/mailing addy further down). Then the online index on the left navigator bar will be a link for you to search the archives of the regular magazine. Sadly, they only have a description right now....we keep hoping they'll add the recipes for members since they canceled the Member's Plus. They don't have the special books in the index, but if you know your recipe is in a regular magazine, it should list it and it's location.
Good luck! I know what it's like to have a great recipe and loose it. I'll only add, if you want a really good recipe for blue cheese dressing, though, you may want to try Jean's...it's awesome!