vShpere 5 running inside Fusion 4.1

I have successfully installed vSphere 5 inside Fusion 4.1 but what I am not successful at is getting MS Windows 2008 R2 64-Bit to install. Here is what I am doing

1. Connect to vSphere 5 using the client on my boot camp partition.
2. Create a new virtual machine
3. leaving the machine turned off after creation I browse the datastore and locate the vmx file and download it to my desktop so I can add the following line vhv.enable = "TRUE"
4. Then save and upload the file back to its original location and overwrite the file that was created when I downloaded it.

Now this is the interesting part, if I place the entry at the bottom of the vmx file when I boot up Windows to do the installation it says the entry already exists and when I download the file to check it sure enough it has place another entry at the beginning of the vmx file, so now there are 2 entries.

If I place the entry at the beginning the vm will drop out of the inventory in vSphere 5 and I show as untitled and is not able to be added back into the inventory.

any ideas are welcomed....

Host System: 

Processor  2.66 GHz Intel Core i7

Memory  4 GB 1067 MHz DDR3

Graphics  NVIDIA GeForce GT 330M 512 MB

Software  Mac OS X Lion 10.7.2 (11C74)