Having Critical Issues with Virtuemart Canonical Url

[webastral021]

Hi All,
I am having Critical Issues with Virtuemart Canonical Urls. When one of my product is belonging to more than one category then i am facing issues with Back to Category Buttons and Breadcrumbs on product pages.

The issue is that when i am trying to access the products from different categories with different urls then on all product details pages same Back to Category button and same Breadcrumbs are coming. For example

http://www.speedtest.xn--6dbeadsa6as0ek.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=125&virtuemart_category_id=39
http://www.speedtest.xn--6dbeadsa6as0ek.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=125&virtuemart_category_id=216
http://www.speedtest.xn--6dbeadsa6as0ek.com/index.php?option=com_virtuemart&view=productdetails&virtuemart_product_id=125&virtuemart_category_id=36

Can any one please help and suggest how to solve this issue  to get the correct breadcrumbs and Back to Category button.

I am using joomla version 2.5.

Thanks