Actually, I had it working halfway through the attempted installation of sprint's communication manager. There's one critical step after the phone is connected and that was to use the "ModemLink" application on the 700.
The way I got it working was pretty much what palm shows at
this link (even includes the necessary .inf file for windows.)
But PDANet is so quick and painless and the license is for the phone, not the pc, it's trivial to install the client and it just plain works without a lot of hoops.