Simple and effective!
As root (to change to root type su (you will be prompted for a root password) in console) in console type:
fdisk -l
This will tell you what harddisks you have on your system. It should have a /dev/hda and some other. If there is no other, then you have some issues with your harddisk connection. Make it a slave.
If there are the two harddisks, then you are off to a good start. Check for the partition that says NTFS it should be like /dev/hdd1 or something...
Make a directory, where you are going to mount the harddisk.
mkdir /windows
then mount the filesystem:
mount -t ntfs /dev/hdxX /windows
(where x = letter of drive you got from fdisk -l and X = the number of the partition of that drive)
If mounting went without errors (read-only message is not an error), you should be able to access the windows disk under /windows directory.
If there were errors, check if you have support for NTFS.
Depending on the version of your kernel, you have or not have the support for NTFS filesystem. To see if you have the support for the ntfs filesystem in console type:
cat /proc/filesystems
There should be a line saying ntfs
One other thing for you to do is type:
dmesg | grep NTFS
This should tell you which driver for NTFS you have.
If all of these don't give you anything, check out
http://linux-ntfs.sourceforge.net/rpm/instructions.html
for instructions on how to obtain the driver and use it.
Hope you get it working. It looks complicated, but it's not really. If you have kernel 2.6.x then you should have no problems after the first few steps. However with 2.4.x you will need to visit the link I provided above.
Peace!