Problem tri-booting Ubuntu 10.04, Windows XP and Windows 7

[Cakewalking]

I had Ubuntu 10.04 LTS and Windows 7 installed and was dual-booting without any problem. Then I installed Windows XP along with them and a problem has developed.

After Windows XP wiped out the GRUB2 MBR, I re-installed it.. then I did 'update-grub'.
Windows XP was not detected when I updated GRUB2 and now when I boot Windows 7 I get Windows XP.

I think what I need to do is set the "set root" parameters for GRUB2 to point to each correct address where each Windows resides on my computer. I am not sure how to go about doing this and hoping someone could help me out.

I have attached a screen shot of my hard disk:
sda5 is Linux, sda7 is Linux swap, sda6 is Windows XP, and sda2 is Windows 7.

I have also attached a screen shot of grub.cfg

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i41.tinypic[DOT]com/143gs2e.jpg

[Jonathan183]

I think when you install multiple versions of Windows on a PC you should install the oldest version first. You may also struggle to get Windows to boot from a logical rather than primary partition. You may find this useful to get the option to boot Windows 7 again.