Adding Titles to Invoice

Hello



I was wondering if anyone knows how I can get my customer invoices to show the customers title on it. I have titles checked on their profile details and checkout details, but it isn’t showing up on their invoice. This is causing problems when I am sorting postage out because I haven’t got all the customer’s details on my invoice.



Thanks,

To avoid any confusion, by Titles, I mean Mr, Mrs, Miss etc…