I was unaware the issue got resolved. What we did for Bridge Commander is not as in depth as what I now see was done for SFC series. Am I correct to assume that you now have an independent access server for SFC? 333Networks built their master server code and configured it for many different games such as Unreal Tournament. I contacted them and had to port sniff for Bridge Commander for them to successfully configure it into their master, but thats pretty much it, and with altering the master servers *.*.com:port address with relevant 333netowokrs master server addresses, we can now once again see and play on servers hosted within the game's server browser for all who have the updated master server address.
My apologies if I came to conclusions in error.