I'm using Joomla! 2.5.8 and Virtuemart 2.0.18a and on Add to Cart I got "Typeerror $.facebox is undefined in vmprices.js (line 67)". When I changed my Joomla! Template to default I lost this error. Many researches gives that jQuery loads any time, but when I disabled VirtueMart jQuery, I've got an error that "jQuery is undefined".
My site is http://bestgifts.am
It is work and for J1.5 + V2.0