You need to have the National Dues - BA checked so that the program knows that they need to pay something.
Then in the section below where it says "Total This Organization" there will be listed an Amount Due. Below that is the "Total Paid:" with an edit box showing the same amount. Remove the amount in the Total Paid box. When you hit the tab button, the amount will appear in the next line after "Total Due:"
This will also indicate on the Weekly Dues that the Sanction hasn't been paid and the "Y" will be shown.