WinXP partitions are usually in NTFS. I think "ntfs-3g" is supposed
to come loaded in Ubuntu, but only the configuration shows in the
add/remove. I had to go to their main site (ntfs-3g.org) and
download the package(s) for Debian. It lets me recognize my main
windows drive when dual-booting into Ubuntu. I don't mount that one,
but it's useful for mounting my external drive that's in NTFS.

My hdd has the 2 windows partitions (pri), 1 Ubuntu for the root
(pri). The "/home" and swap are in separate logical partitions, along
with a FAT32 logical partition to share files between the two OS's
(shows up as another hdd in windows). I had shrunk my win partition
during the back-up/clone process before installing Ubuntu Studio. I
chose the "manual" partitioning during the install process.