Vista dual boot, aborted setup loop

I have a bit of a strange situation. I have Vista Business installed
as a dual boot on a partition on my machine. The dual boot works fine
between my XP and the Vista operating system.

However, this has been difficult for me to use as a developer, testing
my software on the Vista platform, and having to reboot back and forth
all the time. So I installed Virtual PC, and attempted to put Vista
on the virtual machine. When I attempted to installed Vista, it
apparently was trying to run the install on my XP operating system,
and not the virtual machine (it seems it was not the actual active
window, but it was difficult to tell).

So I aborted the install, and it rolled back my XP operating system,
which seems to still be working fine. But it has left a Windows Setup
boot option in my list of bootable OS's, and it is set to start after
only 2 seconds. It loads that, then reboots again quickly, then again
I have two seconds to change it to boot to either XP (earlier version
of Windows) or Vista. This is a pain in the you-know-what, so I am
wondering if there is a solution to this.

I downloaded the tool VistaBootPro, and if I look at the "detailed"
view, I can see the Setup option listed there (see below). But if I
go to manage the OS entries, I only see the two (earlier version, and
Vista).

Windows Legacy OS Loader
------------------------
identifier {ntldr}
device partition=C:
path \ntldr
description Earlier Version of Windows

Windows Setup
-------------
identifier {cbd971bf-b7b8-4885-951a-fa03044f5d71}
device partition=C:
path \$WINDOWS.~BT\Windows\system32\winload.exe
description Windows Setup
locale en-US
inherit {bootloadersettings}
osdevice partition=C:
systemroot \$WINDOWS.~BT\Windows
resumeobject {732bbe4e-3720-11dc-a720-806e6f6e6963}
nx OptOut
detecthal Yes
winpe Yes

Windows Boot Loader
-------------------
identifier {b7091790-2993-11dc-8c28-8236fbf635fb}
device partition=D:
path \Windows\system32\winload.exe
description Microsoft Windows Vista
locale en-US
inherit {bootloadersettings}
osdevice partition=D:
systemroot \Windows
resumeobject {b7091791-2993-11dc-8c28-8236fbf635fb}
nx OptIn

Any ideas?

thanks