A bunch of points with flags (or other icons) would be waypoints. If there's a pink line connecting them, it is a route. A track is a continuous blue line on the Nuvi without any icons.
You need to "import" routes on the Nuvi, did you do that? Go to Menu > Tools > My Data > Import Route. Does it find anything? If you import it, you could activate it with Menu > Where To > Routes. If you can choose a new route, then you may find that the flags will become points along a pink line.
You need to "import" routes on the Nuvi, did you do that? Go to Menu > Tools > My Data > Import Route. Does it find anything? If you import it, you could activate it with Menu > Where To > Routes. If you can choose a new route, then you may find that the flags will become points along a pink line.