You don't need samba to read a fat32 partition on the same machine. Samba is for networking to a windows box.
To see your partition, it has to be added to your /etc/fstab file.
Here is an example
/dev/hda1 /mnt/C vfat user,noauto 0 0
create a directory C in /mnt.
Now you will be able to mount the windows partition. You can do this in a console with mount -t /dev/hda1 or by creating a new hard drive by right clicking the kde desk top, create new, harddisk, click the device tab and on the drop down list choose the listing for /dev/hda1.
Of course, your partition names and numbers may be different.