GRUB screwed up everything

[TV-VCR]

Since I installed GRUB, I can't boot into Windows.

Starting up...
BOOTMGR is missing
Press CTrl+Alt+Del to restart

How do I fix this?
My menu.lst file:

title Windows Vista
root (hd1,0)
makeactive
chainloader +1

title Ubuntu 8.10, kernel 2.6.27-7-generic
uuid 9fcdc342-f235-40e9-aa67-5cc7692b54ec
kernel /boot/vmlinuz-2.6.27-7-generic root=UUID=9fcdc342-f235-40e9-aa67-5cc7692b54ec ro quiet splash
initrd /boot/initrd.img-2.6.27-7-generic
quiet

title Ubuntu 8.10, kernel 2.6.27-7-generic (recovery mode)
uuid 9fcdc342-f235-40e9-aa67-5cc7692b54ec
kernel /boot/vmlinuz-2.6.27-7-generic root=UUID=9fcdc342-f235-40e9-aa67-5cc7692b54ec ro single
initrd /boot/initrd.img-2.6.27-7-generic

title Ubuntu 8.10, memtest86+
uuid 9fcdc342-f235-40e9-aa67-5cc7692b54ec
kernel /boot/memtest86+.bin
quiet

Disk info:

Disk /dev/sda: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x70841fad

Device Boot Start End Blocks Id System
/dev/sda1 1 249 2000061 5 Extended
/dev/sda2 * 250 6474 50002312+ 83 Linux
/dev/sda3 6475 60801 436381627+ 83 Linux
/dev/sda5 1 249 2000029+ 82 Linux swap / Solaris

Disk /dev/sdb: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x70841faa

Device Boot Start End Blocks Id System
/dev/sdb1 * 1 60802 488383488 7 HPFS/NTFS

Disk /dev/sdc: 750.1 GB, 750156374016 bytes
255 heads, 63 sectors/track, 91201 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Disk identifier: 0x64061985

Device Boot Start End Blocks Id System
/dev/sdc1 1 91202 732571648 7 HPFS/NTFS

[louieb]

try making widows think its on the 1st hard drive in the boot order.

title Vista
   map (hd0) (hd1)
   map (hd1) (hd0)
   rootnoverify (hd1,0)
   makeactive
   chainloader +1