igo8 satnavs

[ddtwelve]

I picked up a generic satnav with igo8 maps on it everything's great with it and I've just updated to 2013 maps ,but there's always a big but apart from the onboard route mapping I cannot seem to get a pc based route planner that the satnav will recognise.
I've got a folder igo8/content/userdata/route which is suppose to put the xml route file in but it won't work

any help please would be grateful