You need to download samba-3.0.2a.tar.gz.
once you download it, switch to where you downloaded it.
cd /home/username
then run this command:
tar -xvzf samba-3.0.2a.tar.gz
This will decompress the files into a new directory, probably called samba. Go into this directory, and run:
./configure
when done run:
make
when that's done run:
make config
This will install samba for you. Then goto
www.webmin.com. Install this tool! It will really help you with configuration of samba. They should have an RPM you can install. I hope this helps you. Good luck.