Dual-boot corrupted and ******* lost due to BT4 install and partition resize

[kelphiri]

My machine had Vista in one partition and the other partition i installed Ubuntu 10.0.4 a few days ago. A little later i got BackTrack 4 which i also wanted and upon install the installer asked to resize the partitions and went on to install BT4. When i rebooted i got stuck in GRUB prompt and could not boot any other OS except LiveCD.

Here are the results from the terminal:
ubuntu@ubuntu:~$ cat /etc/issue
Ubuntu 10.04 LTS \n \l

ubuntu@ubuntu:~$ sudo fdisk -l

Disk /dev/sda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0xe90be90b

Device Boot Start End Blocks Id System
/dev/sda1 1 10240 82251776 6 FAT16
/dev/sda2 10241 12819 20715817+ f W95 Ext'd (LBA)
/dev/sda3 12820 12820 4264+ 7 HPFS/NTFS
Partition 3 does not end on cylinder boundary.
/dev/sda4 * 12820 19457 53315470+ 83 Linux
/dev/sda5 10241 12706 19808113+ 83 Linux
/dev/sda6 12707 12819 907641 82 Linux swap / Solaris
ubuntu@ubuntu:~$

Gparted lists the drives as unformatted and unknown

I tried fixing the MBR with Spotmau but still wont boot, it says "error loading OS"