I have the SB-600 but it works fine on my D800. Here is a set of instructions that I use (and tested out again this morning)to set it up with the SB-600 as a wireless remote flash using the pop-up as the trigger. Also works with my SB-R200's in a similar fashion.
On my D800, in the Flash Control for built-in Flash menu (e3), I set the D800 to CMD mode and leave ALL stettings to "TTL" and set it to Channel 1.
PS; This is just in case others want to see how to do it... or have a convenient set of instructions to put in their bag.
Note: I took this from Ken Rockwell's site some time ago. It is for a D90, which I used to have, but works the same for my D800.