There is a package called "samba-docs" that installs the book "Samba-3 By Example: Practical Exercises to Succesful Deployment". It will be either in PDF or Postscript form. I don't have Red Hat Enterprise, so I don't know what Samba Server configuration program Red Hat has. You could also use Samba Swat to set up your server.
See the "man swat" manpage for instructions on how to set it up. The RH documentation may also have instructions on both setting up swat and configuring your Samba network.
This is what my xinet.d configuration looks like:
# SWAT is the Samba Web Administration Tool.
socket_type = stream
protocol = tcp
wait = no
user = root
server = /usr/sbin/swat
only_from = 127.0.0.1
log_on_failure += USERID
Then you will need to reload the xinetd configuration:
sudo killall -HUP xinetd
You can access the web based Swat configuration by pointing a web browser at http://localhost:901
. If you want to do this from the windows host, then you will need to change the only_from IP address to your windows IP address. You will also need to open port 901 in your Linux firewall.
You indicated that you only have the RH server and one windows client. If this server isn't connected to the internet, then you could probably use SHARE level security, and your configuration could be similar to Example 2.2 on page 29 of the Samba3-ByExample book that I mentioned. Since RH SEL uses SELinux for security, you may need to configure SELinux as well. I'm afraid you will need to read the Red Hat documentation on how to do this. I don't use SELinux, so I'm not familiar with the procedure.
The Samba Docs also includes the book "Using Samba". It is based on Samba 2.2, but still should be instructive in understanding Samba and Windows networking.