When you want to write on the partition without root (I hope you want!! 8o), then edit your "etc/fstab" file as follows:
/dev/hdaX /mnt/windows vfat user,uid=XXX,gid=xxx 0 0
/dev/hdaN /mnt/windows2 ntfs user,uid=XXX,gid=xxx 0 0
Remember to change X, N, XXX, xxx values with your one.
Hint: uid is your user ID, see "man usermod" for help! Same for gid (Group ID) "man groupmod"...
Hope this helps you...
Grettings
Galizah