nfs remote mount


I need to mount remote resources from shared from Sun server through NFS protocol.
If I do that by hand (mount Server:/release /mountPonit) this it works but only in Terminal windows.
If I try to user the Finder to use the resource mounted but the mount point bocome an "Alias" and the system ask me to fix it !!!!!!!
MacWorld is strange!!!

1) Where can I "write" the vfstab-Sun-like entries to mount the resources at next boot? :)
2) How can I use the remote resources via nfs ?