May need some help to get a fix on your problem.

When I am clearer I will be able to help you better.

I am not familiar with your term BMB display.
What are you referring to ?

Book Mark Buttons ??

Recently the blank field at the top of the BMB display stopped working. I can enter a search word but when hit enter nothing happens

Search does not work in v2.23b1.
Please use v2.22b if you want to use search on the Fast Dial Page.

but now when open FF all the buttons are blank.

Have you lost all your cells ?
Are you using Firefox 3.5.* ?

If so please see here

Is there a config file for BMB that I can recover from a backup, that I can use to replace the one that seems to have gotten corrupted, or do I have start all over, from square one?

Yes there are bookmarks backups, please see the link I have given you above.

Any further questions please ask.

Many thanks

I am using FF v3.5.2 so the link you provided was the solution; it's working again.

Good news, Michael
Glad to know everything is working again !

Thanks for explaining the problem with the search field and thanks for this solution (-:

A pleasure !

Thanks for your feedback