I have installed joomla 1.7 with virtuemart template v2012 and JA TIRIS.
The problem does not carry the products you select to buy
Hello,
First upgrade your joomla to 2.5.7, then please try to see if there is any js conflicts with JA template.
You should use firebug to examine your web site code and also examine is there is any js conflicts: http://forum.virtuemart.net/index.php?topic=102850.0
Also please read the following:
Commercial Templates: http://forum.virtuemart.net/index.php?topic=108212.0
Js conflicts: http://dev.virtuemart.net/projects/virtuemart/wiki/General_JS-Problems_with_templates_and_jQuery
http://dev.virtuemart.net/projects/virtuemart/wiki/JavascriptCSS_Template_Overrides_and_Avoiding_Conflicts_between_Libraries
Regards