Awesome result, downloaded one of Andy's set routes and copied it to the 'tracks' folder of the OsmAnd folder on the SDcard. Picks up the file in the list of navigable destinations when you select navigate from the map menu (press menu while on main map viewing page).
So that wasn't that difficult, but a little faffy with messing with the settings. Really powerful app though esp. as it is vector based, OS type mapping and can give voice commands for which turn to take. Gonna set a route tomorrow and do a test run on it.
See screen shots of Andy's route loaded on my phone... (ignore straight line from my current location).