Windows 7: triple boot system grub lost

i have triple boot system with xp win 7 ultimate and ubundu. i installed xp first then win 7 then ubundu .Windows 7 disc is non bootable. i am using it with 2 grubs which first one contain ubundu and win 7 .when Windows 7 is selected it shows other grub with xp and wind 7.
BUT i compress c drive and i lost the grub of xp and win 7.using xp cd i run bootfix and i get xp back but i lost both grub .now it directly gbooting xp.how ican recover my old grubs.

Hello sachithkn Welcome to the Seven Forums!

One option available would be replacing the Grub loaders entirely and repairing the 7 mbr. Afterwards the free program called EasyBCD can add a boot entry for ubuntu into the 7 BCD stote(boot configuration) as well as another entry for XP. You would then see the 7 drive made the default boot drive and decide which OS would set as the default.

A good alternate site for that if you would rather not register for the free for home use download is available at Download EasyBCD Community Edition 2.1.2.156 Free - A handy tool for tweaking your system - Softpedia

When installing ubuntu last one tip is seeing the root partition made the "? mount point" avoiding seeing Grub installed into the Windows boot sector. The EasyBCD docs explain how the program will still add a usable boot entry in for the other OS.

thank you for your replay,this solved all my problems .now i am booting to all os with one grub .thank you very much..