Where cant you acess it from?
Can you connect from windows to Redhat or the other way around? Or does it just not connect at all?
If you want just a simple connection you should be able to leave everything in the top of the smb.conf alone and just change the share information at the bottom and workgroup name.
Here is an example of my public configuration with no password to acess for my home network(you really should use a password if its connected to the internet)
comment = server
path = /bigdrive
public = yes
writable = yes
printable = no
browseable = yes
guest ok = yes
When I build my home server with samba I usualy just have to put this in and it works as long as my firewall isnt blocking it.
you may have to find an allow guest option also
I always use the gentoo site
I use it on non gentoo systems also. Just skip all the building instructions.