How do I Install .sis Applications on the original N-Gage?
First plug in your USB cable and open your N-Gage directory up, drag the .sis file from your Computer into the N-Gage root folder, Next unplug your N-Gage from the USB cable. Go onto your phone menu and select Tools > Manager, find the .sis file select it and select the install option. After its installed you may wish to delete the .sis file to save space. The application should now appear on your main menu. The Bluetooth method can also be used same as the QD(see above).