New install, but VISTA will not boot

I have one internal hard drive, which has VISTA factory image and VISTA OS. To this I added an external hard drive via USB and installed SUSE 11 on to this external drive.
The SUSE appears to work perfectly, but when I reboot the system, and select Windows from one of the choices I am presented with Windows Boot Manager.
This Windows Boot Manager offers me two options
1/ MS Windows Vista
2/ opensuse 11.0 installer (Local)
When I select either of the above, it takes me to the SUSE installation DVD. But Vista will not start.
Can anyone help ?

Check this thread
Cannot boot into Vista after openSuse 11.0 Install - openSUSE Forums

mingus might see this thread and help you out.