Ok heres what i did to find it. Go to the executor webite and click on tutorials. Then go down to 2.3b lite +( yes i know you have an xbit, just stick with me
) Then the tutorial will explain where the d0 point is. I know there using the x2.3b lite+ but you don't want to know how to install your xbit your just asking where the d0 point is, and i think this is one of the best tuts out there for finding d0 on all versions.
Heres a link if your lazy Click here you lazy bum (j/k lol)