Just want to add my VAT no to invoice and order confirmation!

[wildtypitch]

Just want to add my VAT no. to invoice and email order confirmation!

Ok so I have managed to edit the email_template_checkout.html and hardcoded my vat number, but for the email text version and invoice I can't find a solution. Which file must I edit? WHat code must I use?
It's mindboggling how a cart software does not acomodate a VAT number on an invoice without special coding.
I did see the VAT mod for european shop that seems great but does not work properly with 1.3.9.

Thanks all.

[wildtypitch]

If I could just find out how to include the store address (as set in store > configuration > my store definition) on the invoice and detailed invoice (when customer clicks link on confirmation email)

This would make me a very happy bunny as I've included the VAT NO. at the bottom of my store address.

[Out2lunch]

Thats exactly what we did, we added it to our contact information.