I think Boxer's question has to do with "Terminator Climbers", a delightfully torturous variation of traditional squat-thrusts.
Boxer, "Terminators" (if I'm understanding you correctly) only appear in Boot Camp and the Gauntlet workout found on the "Terminator" DVD (and the segment in the Gauntlet workout is pulled from Boot Camp). I believe there are more traditional squat-thrusts in the Slow and Heavy workout (I think) or the Power Hour workout (I think).
A-Jock