OK got it:
System.log("VM: " + vms);
Server.log("VM: " + vms);
vm = vms.shift(); // Returns the first item within the vms array
System.log("VM: " + vm.name);
Server.log("VM: " + vm.name);
cpuCount = vm.summary.config.numCpu;
memoryMB = vm.summary.config.memorySizeMB;
Results in screen
cpuCount and memory MB retrieved
THANKS FOR YOU HELP 