Aahhh now I see, instead of using the routes feature on the gps navigate to the waypoints one at a time. E.G. if I did a series of 4 caches I would mark each one as a waypoint at home, making sure I entered the co-ords from the cache page in the order I wanted to do them and number them 1 to 4. Then when I went out I would select waypoints, number 1 and GOTO. This would lead me to the first cache. Once I`d found the first cache I would select waypoints, select waypoint number 2 and GOTO. this then takes you off to the next in the series, and so on.
Hope that`s a bit clearer.