You receive that message, because the application is not developed to run on latest Windows platforms. You can't use it due to the lack of compatibility. However, in order to update your Nokia N70 device, you can safely use the latest version of Nokia Suite. The application is fully compatible with Windows 7 and your Nokia N70. Just download the program from Microsoft Download Center, install it, launch it, connect the device to your computer using the USB cable and from the Tools menu select Software updates. Wait for the application to download the latest files and install them following the on-screen instructions.