After reading the updated manual it said the new version only needs you to select host interface, and highlight your real network card, excellent.
Except my network card was not listed, on my vista PC the selection area was empty, on my XP PC it listed the non existent virtual interfaces that used to be bridged.
The solution was this:
- Vista: Network and Sharing Center, Manage Network Connections
- XP: Control Panel, Network Connections
- Right clicked on LAN icon, Properties.
- Ticked 'VirtualBox Host Interface Networking Driver', and clicked ok.
- Edited Virtual machine, selected Host Interface
- Chose my now visible network card.
- Done
![Smile :)](./images/smilies/icon_smile.gif)
The entries for the old virtual interfaces disappeared once I updated all the virtual machines to point to the real network card.
Also the network bridge is no longer needed for virtualbox and can be deleted unless your using it for something else.