Sorry I just realised that the above sounds a bit harsh it wasn't intended that way It's just getting late here and I'm more than a bit tired I was actually trying to be brief not trying to look as if I was jumping on you.
You need to share the Data Partition and then enable password bypass if this is enabled. What type of Server are you trying to setup here?
If it's a File Server the steps are different to a Mail Server and to be quite honest I haven't used FC5 so the directions for FC4 will most likely be slightly different and depend on what services you have running.
You might find the following useful the Linux User Group Home Page at
http://www.linux.org/groups/
and the Linux is not Windows as this explains quite a lot of the differences involved
http://tinyurl.com/8b9s6