Just saw this today on the Virgin's own forum......
This will be rolled out to some customers as we speak, they will get a text asking if they want to opt in. If you dont receive a text you can call in and opt in that way.
So it is all in place now, you just need to call to ask for if you dont get a text.
Some posters on that forum have called CS and they are now officially roaming on the Orange network!
Read the thread here:-
http://community.virginmedia.com/t5/...ge/td-p/730327