If you would like to retain the PayPal Express Checkout option then you will need to go into the admin area and in the settings choose PayPal Express Checkout only as the gateway, then enter your PayPal API credentials. Once you have entered these and saved them you should be able to use PayPal Express Checkout as well as the other gateway selection.
As for the issue with the cc dates I have opened a ticket for you so we can look into this further. To update the ticket login and visit your support history.
I have edited this as I forgot to mention that after you enter the PayPal API info and save the changes you need to set it back to what it was previously to get the full checkout form available.