Gday Ken
Two things can change the direction of the RA drive
Location and ratios
( What firmware are you running ??? )
( What type of motors are fitted ??? )
You must set your location correctly and confirm the latitude
is Sth Hemisphere ( sounds like you did that )
If that is OK, then the sign on the RA/Az Ratio is probably incorrect
( but the fact that the goto worked has me confused )
Just try reversing the sign of the Az Ratio first and see what that does
An excellent extra resource for your setup is
http://groups.yahoo.com/group/RoboScope/
This group deals heavily with scopes retrofitted with Meade motors.
Andrew