Maybe the serving sizes in FitDay were different from the ones listed on the packages you used, or possibly the calories could be different if you just used a generic entry for ranch dressing instead of the actual brand you used. Your count around 1500 is accurate if it came from the nutrition labels on the products, assuming you measured them correctly.
As far as the vitamins go, most of the adult vitamins do not have calories (or they're negligible), but gummy vitamins do of course because they're made like candy. If you're worried about it, you might want to change over to Centrum or One-A-Day or something like that.
I would also try to spread those calories out more evenly and try to eat foods that will keep you fuller longer so that at the end of the day you don't have a problem with the gremlin in your tummy
. For example, those cocoa puffs probably aren't very filling. It might be better to choose a cereal with less sugar and more nutritional value, like shredded wheat or Kashi Go Lean. Look for high fiber (and protein if possible). I would also redistribute your calories so that you can have more at lunch than just a small salad with ranch dressing. Maybe add some chicken to that salad and have a piece of fruit with it? Dinner calories seem fine though, although I probably would cut down on the ranch dressing. Two servings of full fat dressing a day is a lot and those calories could be spent on bigger volume foods.