[Geekcop]

Are you looking to update your device to WM5/6? If so, it's a little more involved than just downloading a .cab file. You'll need to flash a new ROM. There are several threads devoted to updating to WM6, but be sure it's designed for your device. For example, if you have a Sprint device, you need to be sure you're flashing a Sprint ROM, not VZW, as this could cause issues w/ the radio. The other thing you need to be sure of is that your device has the memory to handle the upgrade. Finally, i'm not altogether sure that the 6600 can be upgraded