"hinesw" and "ncopeman"
The problem was fixed. Please re-download the VM Template from "My Account" section,
and take only the plugin (plg_flexibleTemplate.zip), re-install it to joomla!. And it should be working out.
Once you leave the "Title" fields of Custom-TAB1 and Custom-TAB2, they will accept to be blank and those Custom TABs will disappear from the product details page.
If you notice any other issues, please also let me know. You know.. everything was tested lots of time before the release, but this kind of thing can be missed :)
Cheers.