I am "accounting challenged"

I have been doing it very simple using a worksheet that AVon sends once a year. But even that is confusing for me. I would like to use the accounting features of MBA. But I have a question (1 for the present--probably more later)
WHen I use the "My Accounting" button and click on "new" I get a worksheet. I thought I could just plug in my numbers from the campaign sales and stats report but I can't. I have to enter click on another item and enter more numbers. Does this mean I have to enter each customer's payment again--after I have already entered it on the sales order. This seems like a lot of extra work. Surely there is an easier way.
I'm sorry for the dumb questions and thanks for being patient.