Go the Linux system, type
# fdisk -l ( it will show windows and linux file system partition information)
For windows two type of partitions , win32 and ntfs
Pls note the partition number say . /dev/sda1 win32 or /dev/hda1 win32 or ntfs
This is for how to mount fat filesystem in linux
# mkdir /data
# mount /dev/sda1 or /dev/hda1 -t vfat /data
# mount
it will show your windows partitions in /data directory
# cd /data
Now you can see your windows files in linux /data directory.
if you dont want further pls umount /data
Suppose if you want to mount ntfs partitions , do like that
# uname -r
it shows kernel version say like that 2.4-10.1
Then download ntfs rpm for that kernel version, then install the ntfs rpm by
# rpm -ivh nt*
#fdisk -l
pls note the partition number ( example /dev/sda1 )
# mkdir /data1
# mount /dev/sda1 -t ntfs /data1
# mount or df -h
it show mounting information details
# cd /data1
now you can see ntfs partitions in linux /data1 directory
then transfer files from windows to linux or vice versa