Hi,
in your website, for example here:http://rotamart.com/index.php/handtools/hammer-detail
I don't see our VM Template. Probably you coudn't successfully install the VM Template.
Please carefully read the TUTORIAL.PDF
you are going to upload the /com_virtuemart/
to this path in your website:
rotamart.com/templates/rotamart/html/
so it will be like this:
rotamart.com/templates/rotamart/html/com_virtuemart
Regards.