I have Windows Vista on (hd0,2) and Ubuntu Studio on (hd0,1). Your Disk Manager sees Ubuntu as a Healthy Primary partition, but does not see the OS and will not put it in its list of OSs. When I use SuperGrub2 to boot from CD it sees both OSs and I can boot to either. But I cannot boot from the hard drive to either. I have been at it from both the Linux and the Windows side of things making one or the other the one you see at boot from the hard disk but I can't get either Grub or BCD to list both.
I tried *stolen software reference* 2.0, too, but these graphical boot utilities don't seem to get the job done. I'm an amateur with command line stuff and have tried some of the suggestions I have seen online but I get things like "command not found" when I get close to that carrot on that stick.
Any suggestions? Ubuntu was put on first, then Windows. I'm thinking, "just reinstall Ubuntu" but I would really like to understand the MBR thing.