"My customer data base is empty and I will be building it hopefully soon.  While creating the invoice, I put the customer name into the bill too."

Edit Customer, and fill in the Address Block here, because the Bill To is basically like a Mailing Label:

Name

Address

City ST zip

Up to 5 lines allowed:

Customer Name

Company info

Mailing address line 1

Mailing line 2

City ST zip

When you make an invoice, top Left, choosing the name, the Database accesses this info for you, bringing it to the screen.