That's easier said than done Matt! You upgrade the firmware using the router interface but you don't get a chance to save the file anywhere, you just click "upgrade" on the interface and it does it all for you and says when it's done. Don't even know what website it goes to or where it downloads the file onto my pc. Nothing in my temp directory. It's all a mystery

But, there is a general BT voyager website here that covers other Voyager routers.

Perhaps one of the other 10V users here knows?