If after installing and enabling both plugins, you are unable to upload multiple images into your Virtuemart product listing; check what version of php is being used on your website.

Navigate to:
Site – System Information
In the settings column look for “PHP Version”
If it says 5.2 then you can upgrade your php.

FYI: The plugin has been tested with PHP version 5.3.28 and does work!

To upgrade your PHP Version

Open your .htaccess file on your webserver.

To upgrade your php to version 5.3. Add this line of code:
AddType application/x-httpd-php53 .php

To upgrade your php to version 5.4. Add this line of code:
AddType application/x-httpd-php54 .php