Changing wording for check or money order

My client would like to only accept money orders and not checks. The confirmation screen applies "You can now send us a check for the amount of $....." I've looked all over in the payment plugin info and not found a way to change 'check' to 'money order'. Is there a file that produces this?

It's indeed not in the payment plugin options. You need to go in the config under the tab languages and override that translation via the interface provided when editing the translation file.

Thanks, Nicolas! That was easy enough. One more thing... The icon by default says 'check'. Where can I put a new icon that says 'money order' so that it may be selectable?

In the options of the payment method, you can select the image which will be displayed. The images are all in the folder media/com_hikashop/images/payment
if you add new images there, you will be able to select them in the payment method's options.

Thanks!