Thanks for the responses. Here is what I would like to do:
I have the gps downloads for the TWAT from the BigDog Adventures site (maybe its roklym?). However, I don't want to use a gps, I would like to ride the trail using a roadbook or rollchart. So, I'd like to find a way to convert them to a roadbook. However, I'm beginning to think it's near impossible. As has been pointed out, a gps is pretty easy to use. An odometer and roadbook is more of a challenge. But, to me, that's part of the lure - to learn how to navigate.