salad and vegetables

Is it okay to use oil and vinegar salad dressing on salads and to cook vegetables in olive oil? Is it also okay to steam the vegetables?

Do I have to start my cleanse again?

I am on day 5 of the Ultimate Herbal cleanse, I have just started taking the tablets today. Unfortunately I gave in to a sweet treat, which I am regretting terribly. It was only a small amount, do have to start from the beginning again?