HELP !! Mapping a route between 2 points

i hope somebody can help as im tearing my hair out.....

ive got the following code ( which i copied out of msdn MapSpecification.Pushpins Property example ) :

'Route between two locations
Dim latLongs(1) As net.mappoint.renderv3.LatLong
latLongs(0) = New net.mappoint.renderv3.LatLong()
latLongs(1) = New net.mappoint.renderv3.LatLong()
latLongs(0).Latitude = 40
latLongs(0).Longitude = -120
latLongs(1).Latitude = 41
latLongs(1).Longitude = -121
Dim myRoute As net.mappoint.renderv3.Route
myRoute = routeService.CalculateSimpleRoute(latLongs, "MapPoint.NA", net.mappoint.routev3.SegmentPreference.Quickest)
'Get a map of the route and add pushpins to the start and end
Dim myRouteViews(0) As net.mappoint.renderv3.ViewByHeightWidth
myRouteViews(0) = myRoute.Itinerary.View.ByHeightWidth
Dim myPushpins(1) As net.mappoint.renderv3.Pushpin
myPushpins(0) = New net.mappoint.renderv3.Pushpin()
myPushpins(0).IconDataSource = "MapPoint.Icons"
myPushpins(0).IconName = "31"
myPushpins(0).Label = "Start"
myPushpins(0).LatLong = latLongs(0)
myPushpins(1) = New net.mappoint.renderv3.Pushpin()
myPushpins(1).IconDataSource = "MapPoint.Icons"
myPushpins(1).IconName = "29"
myPushpins(1).Label = "End"
myPushpins(1).LatLong = latLongs(1)

mapSpec.DataSourceName = "MapPoint.NA"
mapSpec.Route = myRoute
mapSpec.Pushpins = myPushpins
mapSpec.Views = myRouteViews
Dim myMaps() As net.mappoint.renderv3.MapImage
myMaps = renderService.GetMap(mapSpec)

*******************************************

my main problem is with the following line :

Dim myRoute As net.mappoint.renderv3.Route
myRoute = routeService.CalculateSimpleRoute(latLongs, "MapPoint.NA", net.mappoint.routev3.SegmentPreference.Quickest)

it doesnt seem to like the "latlongs" argument. it says its supposed to be a ROUTE instead of being a RENDER variable. however, ive already tried this and if i change it. then the latlong entry in the myPushPin says it doesnt like it as its now a ROUTE variable and not a RENDER....

PLEASE PLEASE PLEASE, CAN ANYBODY HELP ? im very new to mappoint web services....

Have you initialized the RouteService class?

Ooops! Hit submit too soon!

Have you initialized the route service class? Also can you post the error message that your are getting.

thanks for your reply to my problem. it looks like that the problem was that i had not connected to the web service properly. thanks anyway, its much appreciated !