Well if showmount is seeing the share(s) you should be able to mount them that way if you are stuck with samba (it's a bit more unixy anyway)
For any public shares it should be as simple as making a mount point and then mounting as server:/share e.g.
Hope this helps
$ showmount -e 192.168.1.127
Export list for 192.168.1.127:
$ sudo mkdir -p /mnt/nas-01/public
[sudo] password for steeldriver:
$ sudo mount -t nfs 192.168.1.127:/public /mnt/nas-01/public