Hello All, I am new here so, "HI!"

I am working on a form for a group of kids who sell pizzas. I have most of the form down, but I can not seem to get it to communicate with another sheet. I would like it to do a delivery section and such. It is hard to explain, but if any of you Excel Wizards want to help a group of kids I can send the for to you with an explanation of what I want. If someone can show me I can do the rest. It is beyond me....