Library Linda, thanks for the tip about using the red wine vinegar. I just bought some for another recipe (which one I cannot remember right now -- you know how that goes).
I will try to return the favor by telling you that I wouldn't suggest using a generic tomato soup in this recipe. I tried it once. Once. It really turned out too soupy in texture and just didn't have that special taste. It might have been just the brand but ever since I have used good old reliable Campbell's. My family and friends just love this tangy red kind of French dressing.
Thanks for the nice review. I appreciate it plus it reminded me it's time to make this again. 