newbie nfs question

We have 3 SuSE linux boxes with ethernet cards correctly configured. On 192.168.0.0 is installed the nfs server with 192.168.0.1 and 192.168.0.2 nfs clients. All installed with Yast2. How do we communicate with the other machines? How can I get a file from 192.168.0.0 in /home/fred into one of the clients. It can't be that hard no? Any help much appreciated. Steve.