I saw crux problem 2 time do you can check it please
1. install crux on hosting ipage and local hosting. The first time when finish install crux they show error coding and i try to update it but it can not work do you can print screen or document how to in stall and update it with out error of crux please because this first time for me to use template + virtuemart (I never use virtuemart before that's why i loss know how to install and configuration it)
2. In future around 2 years for joomla and virtuemart should update every week or not or only the first install crux