@Anonymous

RE: I want to know how I can download the credit card transactions into the same register as my checking account register.

RE: I'm assuming all of my credit card charges will now be imported into the register just like my banking transactions when I sync to the bank. 

No, they will be imported into your Credit Card account register.  Credit card transactions don't have anything to do with your bank account.

RE: How does Quickbooks handle to payment made out of my bank account to the credit card company?

The payment will come down as any other transaction.  Generally they're not handled well automatically.  Instead, record the payment as a Check in your bank account, using your CC account, before downloading that detail for the credit card.  Then you can match the payment to the downloaded transaction.