There is one more way of doing the same thing.
1. Make a new folder /mnt/c_win
2. Now go to the file /etc/fstab file and edit it to add the following entry:
(I am replying from the windoze box so cant tell u the exact sequence right now...however this is probably ok)
/mnt/hda1 /mnt/c_win vfat defaults 0 0
This entry will automatically mount your windows partition at the time of boot. Hda1 is C
/mnt/c_win) ....similarly, use hda2 for D
d_win) or any name u wanna give and so on...
If properly mounted, you will notice the contents of that particular drive in /mnt/c_win directory and so on......