USPS Shipping Module Upgrade from RateV2 - RateV4 OScommerce

Got this message from USPS Effective August 24, 2011, the “Rate” and “RateV2” versions of the Web Tools Domestic Rate Calculator APIs will be retired. Integrators are encouraged to migrate to “RateV4” as soon as possible. You can find the “RateV4” technical guide at usps website For questions or concerns, please contact the USPS Internet Customer Care Center at 1-800-344-7779 or . Thank you, USPS Web Tools Program Need to upgrade this ASAP. ====================== PLEASE ONLY REPLY IF YOU CAN FIX THIS. SEND ME A MESSAGE AND LET ME KNOW HOW FAST YOU CAN GET THIS DONE.