Disk /dev/hda: 160.0 GB, 160041885696 bytes
255 heads, 63 sectors/track, 19457 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes

   Device Boot      Start         End      Blocks   Id  System
/dev/hda1               1          66      530113+  82  Linux swap / Solaris
/dev/hda2   *          67        7299    58099072+   c  W95 FAT32 (LBA)
/dev/hda3            7300       19457    97659135   83  Linux

and my grub.conf
default 0
timeout 10

title=WindowsXP
map (hd0,1) (hd0,0)
map (hd0,0) (hd0,1)
rootnoverify (hd0,1)
makeactive
chainloader +1

title=Gentoo Linux (2.6.16-gentoo-r9)
root (hd0,2)
kernel /boot/kernel-genkernel-x86-2.6.16-gentoo-r9 root=/dev/hda3 gentoo=nodevfs
video=vesafb:ywrap,mtrr,1024x768-16@100 splash=verbose,theme:emergence console=tty1
initrd (hd0,2)/boot/fbsplash-emergence-1024x768

title=Gentoo Linux (2.6.17-gentoo-r4)
root (hd0,2)
kernel /boot/kernel-genkernel-x86-2.6.17-gentoo-r4 root=/dev/hda3 gentoo=nodevfs
video=vesafb:ywrap,mtrr,1024x768-16@100 splash=verbose,theme:emergence console=tty1
initrd (hd0,2)/boot/fbsplash-emergence-1024x768