sadly, I have to agree with pixiepie (whose analysis was perfect). This extension had SUCH potential, but when I went to look for answers to my questions about integrating authorize.net with virtuemart all I found were people with the same questions. Whatever responses there were on the site were cryptic at best. I would be willing to pay for a joomla based e-commerce system if that's what it would take for full support. It doesn't seem like I've found my joomla e-commerce solution yet. I think that the day that a full and polished solution arrives is the day that Joomla truly catches on. Joomla NEEDs a good e-commerce extension.