Prepare a route for IGO8

[evvivame]

hi,
I w'd like prepare a route, with the Windows-PC, for IGO8 on Mio C250+.

I think to this way/steps:
a) prepare the route with Google.maps (more user frendly than with the nav) ,
b) export route to .kml file
c) with routeconverter convert it in to ?? format
d) export file to nav in to folder ?

Someone can me help, to found a solution to my problem ?

Thanks in advance !!!!!!!!
Luciana