Standard Shipping Does Not Appear When FedEx is Active

[stefano14208]

Dear Support Forum,

I have two shipping options enabled in my configuration:
1) The FedEx shipping module.
2) Standard Shipping module with individual configured carriers and rates. RECOMMENDED !

In Standard Shipping I created a shipper and shipping rate for "Free Shipping" or actually what I named "No Shipping Required" following these instructions.  http://forum.virtuemart.net/index.php?topic=71811.0 This worked fine but for some reason it does not display when I have FedEx enabled.

It's almost as if Virtuemart will only let me have one or the other but I want to basically show the "No Shipping Required" option for all products with zero weight.
My site is www.buckhead-imports.com . Here is a product with zero weight to test: http://www.buckhead-imports.com/vmchk/dyno-rental/4ngiefest-dyno/flypage.tpl.html

I am using VirtueMart 1.1.4 stable 

Please let me know if you have any suggestions. Thanks