This is how we record items paid by credit card (typically an immediate expense - something that you get a receipt for payment made rather than an invoice for payment due at a later date).
+New --> Suppliers - Expense
Payee is the supplier of the goods
Payment account is the credit card you used to pay the expense
Payment Method is credit
Enter the transaction (category, description, amount etc.)
Attach a copy of the scanned receipt (if you do that) and make any notes or references you want kept on file.
Save and close
Hope this helps.