All of the tutorials I've found address how to create a stroke from a path, but that stroke is not editable. What I'd like to do is create a vector shape that is only a stroke, not a closed shape. Thanks!
If you create a vector path and save it in the path palette you can edit it. When you stroke a vector your laying down pixels. Pixels can be edited however not with vector tools. If you want to be able to edit a stroked path using vector graphics a good method is to add and empty layer and stroke that layer. When you want to edit the stroke you delete that stroked layer. Add a new empty layer edit the saved path and stroke the edited path.
Yes, I've previously used the method you described, and I'd like to be able to edit the path without laying down pixels. Going along with what Semaphoric said, what I want to do is easy with Illustrator, but unfortunately I don't own it.
I would just Save Work Path (Paths Palette), for later use, and only apply the Stroke to an otherwise empty Layer. If you need to make a change, just Delete that Layer (with the Stroke pixels), then add a New Layer, adjust that Path, and Stroke again.