If you are using your own screenset, the threading diag DROs have changed a little bit:
SetUserDRO 1240, StartX
SetUserDRO 1241, EndX
SetUserDRO 1242, StartZ
SetUserDRO 1243, EndZ
SetUserDRO 1244, Pitch
SetUserDRO 1245, Taper
SetUserDRO 1247, Number of passes total
SetUserDRO 1249, Total_Depth
and set while threading is running:
SetUserDRO 1246, actual passnum
SetUserDRO 1248, acutal cutdepth