Now you need to ask your template developper to provide a fix for their template to support VMcustom plugins on product details page just like a regular VM2 template.
If not you'll be unable to use any of the existing vmcustom plugins (even the ones provided with virtuemart) .
What template provider is it?
- Need help? Post the URL of the related page (eventualy as confidential info), it will help solve your issue faster.
- An error, notice or warning? report the exact message including the line number
- If you get a white page , enable error reporting and / or check your server error logs.