Duplicating 'ask a question' functionality and failing
 

Can you explain the secret of building emails within X-Cart to me?

I want to duplicate the popup form for 'Ask a question about this product' so I started by copying popup_ask.php, renaming it and then doing the same for all files in the call tree, i.e.:
copying and renaming customer/main/ask_question.tpl
copying and renaming mail/ask_question.tpl
copying and renaming mail/ask_question_subj.tpl
copying and renaming mail/html/ask_question.tpl

Within product_details.tpl I included the call to the my version of popup_ask.php.

When I click on my new link on the product page my new form appears but when I submit the email contains the fields for the original Ask a question form.

I am content that all my code changes are correct for the client side but I suspect that x-cart is indexing something that I'm not aware of.

Any suggestions?

Re: Duplicating 'ask a question' functionality and failing
 

Additional:

I can see that dispite calling func_send_mail with the new mail templates the email is built using the ask_question templates.

I know I'm not the first to get stuck on this issue so any help will be appreciated.