marketpress store settings

Hi,
Is there anyway to apply another text for Special Instructions Field under store settings ->general tab -> miscellaneous settings.
i Want to change the text from "Enabling this field will display a textbox on the shipping checkout page for users to enter special instructions for their order. Useful for product personalization, etc. Note you may want to adjust the message on the shipping page." to "Enabling this field will display a textbox on the shipping checkout page for users to enter special instructions for their order. " without modifying the marketpress.php file.

Thanks in advance.