Hi Aaron, I'm on EE in the UK as well but my firmware version is different than yours, I think mine is newer. Mine is 02177.00000.15221.30006. I got it from the Windows Device Recovery Tool.
On Thursday, still on 8.1, I downloaded the Upgrade Advisor app and it told me there was an updgrade for my phone but it wasn't ready yet, so I installed the Windows Insider app and got into the insiders program on the Release Preview ring and installed W10. Then I connected my phone to the Device Recovery tool, to go back to Windows Phone 8.1 (because I wanted to get W10 when EE released it) and it told me there was a firmware update available.
So I installed the firmware update, then I got into the insiders program again and now I'm running the latest firmware and the latest software, as fas as I know.