i'm VERY new in this (about 5 days). I try evrithing i found on net to have a choise when i boot, but i was still booting in XP or i recived some error mesage from FEDORA. But i understand this "Grub.conf" is the esence. I remove hdd with XP, reinstall Fedora, logon "root", edit grub.conf and add smething like this:
title Windows
rootnoverify (hd0,0)
/boot.ini
and connect again the XP hd.
Now i'm happy. When fedora start i have the posibility to boot in Win XP. I don't know if it's right but it works
excuse my english