This has been bugging me for years now! The inability to save your freezed fields to an .MXD you are working in when geocoding. Freezed fields are saved in the normal attribute tables but not in the review rematch geocoding window. It'd be nice to save the 4-6 fields that I like to see when geocoding. The only workaround that I have found is to leave the .MXD open but after a certain amount of time, I get database failures and have to close and reopen the .MXD anyhow. Let's implement this ASAP!