File server, need to share files but can't

view story

http://forums.fedoraforum.org – I just set up a Linux server (running Centos, but it's RPM-based, similar to Fedora), and I have a second drive installed (currently NTFS partition, but that shouldn't matter, right?) I can access the drive locally, as it is mounted via /etc/fstab. I want to share a folder called "allshared" on this drive (not the / folder). I need to share this via NFS (for my Fedora box) and via Samba for my Windows box. I can see this computer via the network, and have opened all appropriate ports on the firewall, however whenever I try to mount (NFS) or map (Samba) this share, I am asked (HowTos)