Might I first recommened using USALS to find your closest to true south sat. Tele-satellite magazine has a good article in this months edition, or you could go to this link.
http://www.tele-satellite.com/TELE-s...g/beginner.pdf
http://www.tele-satellite.com/TELE-s...g/beginner.pdf
Use the software they talk about if you do not have USALS functionality, it make antenna alignment a much less stresfull situation.
Maus