RE: Which payment gateway are you using for the theme ?
Theme picks all the hotels and informations from our Web Services and uses your CID and API for the payment transactions. This way all the transactions are made with your CID and you gain comissions against each booking. All the registered users and booking history are stored in the local database and we donot collect it in any manner.
Yes, The payment gateway that you see is connected to the EAN Gateway and all the payment is collected by Expedia directly.
Please feel free to ask me in case you have any questions.