urgent, please!!!!!

Hello,
A little problem… One of my users decided to reinstall his XP. But, unfortunatelly he forgot to save one folder that contained important information. He started the computer with bottable XP cd and he didn’t delete the partition but he formated the partition with NTFS… and of course… before it was FAT…
As far as I know, it’s impossible to recover the lost data…
But… if anyone can help with an ideea…
PLEASE!!!!