jcova58, I started another thread about the Zumo and tagged you in it.
Rhys, we have a couple options. If you want, you can send me a GPX file to yml at yml dot com or, if you're brave, you can upload the GPX file straight to a map.
Click your login id link at the top right.
Click the "Maps" tab.
Click New Map.
You'll see a GPX upload button on the map (the one with the up arrow).
Click that.
click Choose file. Find the GPX file. Click the checkbox. Then upload.
Then click save.
That's all there is to it.
You can edit the map again by clicking the three dots in the upper right.
You can add photos and points of interest. A few photos of key places would make for a more compelling map.
If you run into any problems, please let me know.