I think it is.. I remember discussion some time ago on Yahoo group about this.
The config.dat file has the following section:
[*** motor setup section ***]
MotorControlMethod 0
MotorWindings 4
InvertOutput 0
KeepAlivePPortPin 0
AltFullStepSizeArcsec 2.750000
AzFullStepSizeArcsec 2.710000
ReverseAMotor 0
ReverseZMotor 0
MotorControlMethod should be set to 1 (I think...

)
Perhaps you should try this and observe with CRO what is happening at LPT port.
However, since I don't use this method (I have parallel driver), I think it is better for you if you go to Yahoo group and ask somebody or Mel himself, he is one very helpful guy and I am sure he will reply quickly