I can't recall whether the single engine autoland feature is a question of operator specifications, a particular option package purchased, or actual aircraft serial number. I know some 767's are approved for single engine autolanding, and I know from experience that the simulator does a really nice job (with manual throttle for all the aforementioned reasons). As for yaw control, once the ALIGN mode is engaged, the autopilots do a great job right up until 400 feet AGL on the go-around...at which point you'd better have a foot on the correct pedal, or you're going for Mr. Toad's Wild Ride...