If you stick to your menu, you will totally have that weight off by summer no problem! I can tell you that the menu items they gave you are very specific for a reason and you need to not make any substitutions or vary from it. You cannot have any store bought salsas, but there are several recipes for homemade versions in the MRC cookbook. You have to count them towards your vegetable allowance though - they are not to be used as an additional garnish/topping.
Hope that helps - look forward to seeing your progress!