Short version is that you can't well at least not "officially". You'll need to use google for the other options.
Froyo on the Droid has the USB Tethering option but from all reports I've seen is that the Verizon phone reps won't enable it as there's supposedly no "official" support. When you try to use it, it pops up a web page with a number to call to add it but the reps claim they can't.
