I have a BCT8 and I don't think there is a way to verify. You could always do the upgrade yourself to be sure. Read the instructions on how to do it though. You have to hold some buttons at the same time while powering the unit on before you can flash the FW.
Actually that's not correct. I just did the rebanding update to mine a few weeks ago.
09 Feb 2009, PaulOpitz)EditAttach
This page contains information on applying the BCT8 Rebanding Update. Read the following sections carefully.