Yes, that regraded successfully, using 192.168.1.254/upgrade . The regrade took a surprisingly long time, but it got there in the end, after I'd begun to think that it had failed. Be aware that it resets the router to its factory defaults.
Can you also go back to the Qwest firmware from v6 Bt firmware?
Here's how to set the time to UK time.[snip ...]5. After that go back to the time zone page and click apply. That will set the time to the correct UK time.