Via the command line:
mount /dev/hda1 /mnt/windows -t ntfs -o umask=0002,nls=utf8
/dev/hda1 /mnt/windows ntfs ro,umask=0002,nls=utf8
I would discourage you from logging into your system graphically as root. There usually is no reason to do so. If you need to run a graphical program as root, you can do so from KDE in the run dialog (Alt+F2)by clicking the options button, selecting the Run as a different user check box, and entering root as the username along with root's password in the username and password text boxes.
That way only one graphical program, the one you need to use, is running, and you keep a measure of security on your system. Getting into the habit of running as root graphically will make your system almost as insecure as Windows.