Janie, the best thing for you to do is read a few books and pick a plan. Experience of my own is the perfect example that you can't mix plans too easily! Zone isn't low carb, and their bars aren't either. If you want to do a low carb diet, you will have to pick another kind of bar.
As for the fruit, it depends on what plan you are on. Almost all of them have strict no-no's on fruit in the beginning. You need to get it all out of your system, then you can add it back in.
The rest of your day looked pretty good, except for the light salad dressing. Make sure you are getting enough fat, and also make sure that it doesn't have added sugar. Low fat ones often do.
At the very least, look at the low carb diet guide here, and then choose a plan from what you read.
http://www.3fatchicks.com/diet-toolb...arb-guide.html is the Low Carb Diet Guide. In the Toolbox section on the left hand menu, you will find different diets to click on and read about. Hope it helps!