Ok - this is really weird - I uploaded the files to my server, imported the product, and then refreshed the ACP before doing the template edits, and found no vbSupport CP nav listed - I double-checked that all of the files went to the right folder, especially that the cpnav_vbsupport.xml went to "/public_html/forum/includes/xml" but it is see it is still not there.
I am running 3.6.8 - any ideas?