I found the following link with a quickee summary of what to do, it might be helpful:
http://www.olegnovikov.com/technical/nikoncls/cls.shtml
http://www.olegnovikov.com/technical/nikoncls/cls.shtml
I have the SB600 and I hate it.
I often use the flash off camera so I have to change the setting in
the SB-600, and make sure my camera is on the same channel. When I
want to use the flash on camera it wont work without going into the
flash settings and changing it back.
In order to do this you have to hold 2 buttons and then toggle around
because nothing is clearly marked in the menu. It is a pain to open
the manual to make sure all the right settings are checked, and even
worse when you need to pull your camera out of your bag quick.
If I would have known I'd pay more for one that had more buttons. I
just don't know if The higher end models toggle back and forth easier.
I might end up printing the instructions to go back and forth on a
sheet of paper, and then laminate it with tape right to the side of
the SB-600.
It works well other than that one problem I have.