I'm trying to help a clueless friend long-distance. He has a 3G with 3.1 and is running Vista. He wants to be able to tether. I know he'll have to downgrade to 3.0 (or 3.0.1), and then go from there, but with all the searching I've done, I can't figure out which is the simplest method for me to tell him to follow. He is really clueless (I asked what OS he was running, and he told me Safari), and I don't have a 3G to test it on. Can anyone point me in the right direction?