This is a hidden feature on the server, but its one of those options you are able to see on esx, workstation and early versions of vmware server, so here is a method to enable it.
Go to the location where your vmware virtual machines are running, if in linux then more than likely here:
/var/lib/vmware/Virtual\Machines/
Locate the .vmx file of the virtual machine you want to enable VNC on and open it with nano/pico/vi or any editor you want, notepad if under windows.
Add the following lines to the file towards the end of the file:
RemoteDisplay.vnc.enabled = "TRUE" RemoteDisplay.vnc.password = "password" RemoteDisplay.vnc.port = "5900"
Change the password to whatever you need it to.
Notice if you enable VNC on more than 1 Virtual Machine then make sure the port is always different on all of them.
Now launch your favorite VNC Client such as RealVNC and connect to the IP address of the server (not the virtual machine).