Installing AirPort update 3.3.1

[Seeker]

    Downloaded and ran this update with no problem.

    Then, following the instructions on how to update the Base Station
itself, ran into this problem:

    When you follow the instructions in the ReadMe that accompanied the
3.3.1 update, it tells you:

    Launch AirPort Admin Utility

    Choose the ABS

    Choose Configure

    Choose Upload...and that dumps you into a standard Mac dialog/navigation
window and leaves me clueless as to where to navigate to in order to find
something to upload?

    Many thanks,   
    bob