Hi Rob, thank you for the warm welcome and the tip. I tried that this morning and it didn't work though. Only Vista was listed and it was already set as the default operation. When I reboot I still get the two choices; Windows XP Professional Setup and Windows Vista. XP Setup is the first choice.
If I choose 0 seconds for the default choice Windows goes in Installation of XP mode so this would prevent me from booting up in Vista altogether.